选择 填空题
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6选4填*20套一、选择题(单选)1-1. 完全二叉树____B____二叉树。
A.一定是满B.可能是满C.不是D.一定不是满答案:B 难度:易1-2.满二叉树_____A____二叉树。
A.一定是完全B.可能是完全C.不是D.一定不是完全答案:A 难度:易1-3.完全二叉树中,若某个结点没有左孩子,则它____C____。
A. 有2个右孩子B.一定有右孩子C.一定没有右孩子D.不一定有右孩子答案:C 难度:中2. 设一个完全二叉树共有699个结点,则在该二叉树中的叶子结点数为_______。
A.349B.350C.255D.3513.深度为n的完全二叉树的叶子结点有__________A.nB.2nC.2nD. 2n-14.在一棵完全二叉树中,若编号为i的结点存在左子女,则左子女结点的编号为___C_____A.2iB.2i-1C.2i+1D.2i+25.在有n个结点的二叉树的二叉链表表示中,空指针数为( b )。
a.不定 b.n+1 c.n d.n-16.下列二叉树中,( a )可用于实现符号不等长高效编码。
a.最优二叉树 b.次优查找树 c.二叉平衡树 d.二叉排序树7.具有m个结点的二叉排序树,其最大深度为( f ),最小深度为( b )。
a. log 2 m b. └ log2 m ┘ +1 c. m/2 d .┌ m/2 ┐ -1 e. ┌m/2 ┐一、单项选择题(1)-(5)BBCDC (6)-(10)BCABC (11)—(15)DABBD (16)-(19)CCABB(20)-(24) BBBAC (25)-(27)DBC二、填空题(1)有零个或多个(2)有且仅有一个(3)根据树的广义表表示,可以画出这棵村,该树的度为4。
(4)树的深度为4(5)树中叶子结点个数为8(6)n0=14 (7)n-2m+1 (8)2k-1 (9)2i-1 (10)133 (11)59(12)25=32 (13)⎡log2(n+1)⎤=⎡log269⎤=7 (14) 25-1+6=37 (15) 19(16)27-1-20=107 (17)右(18)m+1 (19)n+1 (20) 2m-1(21)中序(22)直接前驱结点(23)直接后继结点1.关于二叉树的下列说法正确的是B。
选择题1. A fter the war, a new school building was put up _(D. where)2. A head of me I saw a woman_(A. who)3. A new idea began to _(A. emerge)4. A great man shows his greatness_(D. by)5. B eing engaged in the research work,... _.(B. except to)6. Both O. J. Simpson and Jim Brown have been_(A. ranked)7. Before he left the While House, the president made a _(D. farewell)8. Breakfast is the important_(D. meal)9. By nine o’clock, all the Olympic .....(D. above which)10. Can those_(C. seated)11. Doctor Green went on with his experimen...(A. for all)12. During these ten years, many new methods have been_(A. adopted)13. Do you think Mary will call her old friends as soon as she _(B. gets)14. Danny left word with my secretary _(B. that)15. Don’t forget to _(A. cable)16. —Everybody is going to climb the mountain. Can I go too, mum?—____Wait till you are old enough, dear.(D. I’m afraid not)17. He can hardly understand what the teacher has said, _(B. neither can I)18. He is the only one of the students who_(D. has)19. He doesn’t dare to leave the house _(A. in case)20. He reached London in 1994, _(B. where)21. —How did you get in touch with the travel agent, Robin?—Oh, that’s easy. I surfed the Internet... _(C. of which)22. He_____his father in appearance but not in height.(C. resembles)23. He can hardly understand what the teacher has said, _(B. neither can I)24. Have you heard ____ news? The pieceof _(C. the, /)25. —Have you finished the book?—No. I’ve read up to_(D. where)26. He felt _(D. ashamed)27. I certainly didn’t intend to _(A. upset)28. If you want a pen, look inside the _(B. drawer)29. In order to write his paper, he borrowed a lot of _(B. reference)30. I calld Hannah many times yesterday evening,...(A. was talking)31. It is highly ____ that he come here tomorrow to join us.(A. desirable)32. If you don’t _____ somking you will never get better.(B. give up)33. If you just stay in this city for a few days, we can give you a _(B. temporary)34. I never realized that someday I would be married to a _(C. genius)35. I am afraid it was a____for you to do this.(A. bother)36. In order to do a good performance in the examination,..._(B. reference)37. I have bought a story book _(A. in which)38. If you don’t mind, I _(B. would rather)39. It is requested that every student _(D. write)40. I have no _(B. cash)41. In my opinion, he’s _(D. by far)42. I’ll spend half of my holiday practicing English and_(B. the other)43. It is necessary that everyone_(D. should have)44. —I have not got the reference book yet, but I’ll have...—Do not worry. You ____ have it Friday.(B. shall)45. I expected her to____her promise.(B. carry out)46. I f you don’t mind, I __(B. would rather)47. It is_____to anyone here that the department..(C. evident)48. I’ve heard him____about you often.(C. speak)49. I’m amazed that the young actress married the photographer so soon,for she_____him very well.(B. can’t have known)50. Joining the firm as a clerk, he got rapid promotion, and _(A. ended up)51. Jack lost his job a year ago and he_(B. hasn’t found)52. Last night Mr. Crook didn’t come back at the usual time. _(C. Instead)53. Mr. Green said that he did not want to_(A. take on)54. Mothers holding jobs outside the home should have _(C. flexible)55. Mr. Brown is looking for his glasses. He thinks he _(C. left)56. Mr. Black is very happy because..._(B. more popular)57. Milk, butter and cheese are _(D. transported)58. Never forget to ask for the _(C. receipt)59. No sooner _(A. had we)60. Nancy enjoyed herself so much _(C. when)61. Only after I had reached the airport_(C. did I realize)62. On our way to Beijing, ...__(C. inhabitants)63. Our English teacher insisted that we spend more time on _(C. worthwhile)64. Our neighbors gave ___ a baby bird yesterday that hurt __(B. us, itself)65. One of the main reasons for air pollution is that many cars _(C. discharge)66. People have __(D. got rid of)67. Peter_(C. may)68. Recently he__(D. stays up)69. Since we __(A. adopted)70. She suggested at the meeting that we _(A. should)71. Such things _(A. as)72. Susan wanted to be independent of her parents. She tried _.(A. living)73. Ships are _(B. so much slower)74. She gave him a _(D. hint)75. So far this year, we _(D. have seen)76. Some people say that we live_(B. in)77. The humans are destroying nature day by day, _(D. which)78. The growing speed of a plant is influenced..., (B. most of which)79. The children _(B. have been told)80. The island is _(D. equally)81. Those who suffer from headache will find that they get _(A. relief)82. This is the key_ (A. which you are looking for)83. The woman__(C. he takes care of)84. This will improve their working...__(B. quantity)85. The airplane took off soon..._(C. swaying)86. This is a poem about_(A. bay)87. There____no time left, we had to change our plan.(A. being)88. The workers_(D. packed)89. The Bushmen are _(D. expert)90. The local government has begun a _(D. project)91. That is____behavior and nobody likes it.(C. selfish)92. The doctor thought_(D. it)93. The climate here agrees_(B. with)94. The young man_(B. whom you just talked to)95. The names of the successful candidates will be_(A. put up)96. That radio company is so big that it has a lot of_(D. agents)97. These programs are designed for those young people who want to _(D. pursue)98. There _(A. being)99. Things might have been much worse if the mother_(A. had insisted)100. This watch is __(D. manufactured)101.There was such a long line at the exhibition_(C. that)102. These two horses look so much alike that we can not _(C. distinguish)103. The article suggests that when a person_(C. is)104. The president of that company ...____.(D. crisis)105. The growing speed of a plant..., _ B. most of which)106. This supermarket developed rapidly under his ______.(A. administration)107. These programs are designed...____ higher education.(B. pursue)107. The production _____ of the factory is now 800000 units.(C. capacity)108. The doctor is skilled at treating heart...s, so he has a very good _(B. reputation)109. The students _____ their work by the end of this month.(A. will have finished)110. They _____ the work in spite of the extremely difficult conditions.(A. carried on)111. The knowledge we gained in school is very important, _(D. on which)112. The more attention you pay to your study, _.(B. the easier)113. The old lady has _.(B. lived through)114. The two brothers look very much _____.(A. alike)115. The students should be _____ for the things that they do.(A. responsible)116. There will be a(n) ____ telecast of football match tonight.(D. live)117. These pictures ______ to his mind his previous days in China.(B. brought back)118. Thousands of foreigners were __(C. attracted)119. That is a _______ point of view. I don’t agree with you.(D. conservative)120. The ____ left the ship after sixty hours of hard struggle.(C. crew)121. Under no condition _ (D. will his mother be left)122. Under no ______ will I go there again.(A. circumstances)123. Vince is learning Chinese in my class. _____ Teresa.(A. So is)124. What ___did you watch on television last night?(C. channel)125. When she heard from the hospital...., she _(D. broke)126. When heated, water changes into____.(B. vapour)127. What you said reminded me __(D. of)128. What she achieved in her research might_(A. exceed)129. When you buy anything expensive, ... _(C. receipt)130. We all _____ your coming to help us.(B. appreciate)131. What they are _(D. arguing)132. We all _B. appreciate)133. When asked __(A. what)134. What they are _(D. arguing)135. Would you give me a __(A. temporary)136. —Who should be responsible for the accident?—The boss, not the workers....(A. as told)137. —Would you like to join us in the game?—____(D. I’m afraid not)138. —When did you last hear ___ Jay?—He phoned me this morning, and we agreed _(D. from, on)139. When asked _(A. what)140. What present _(C. do you expect she has got)141. When the temperature is below zero, water will _(A. freeze)142. Yesterday was such a_(A. glorious)143. You had better_(B. keep an eye on)144. You have no idea how she finished the relay race _(C. with)145. ______ is known to all, Peking University ..(B. As)146. _______ is known to us all is that the 2008...(B. What)147. _____ in the queen for half an hour, ....(C. Having waited)148. _____ is known to all, Peking University...(B. As)149. ____ the website of the Fire Department...(D. Search)150. ___ the project as planned; we’ll have...(B. Complete)151. _____ Mother will wait for him...(B. However late he is)152. _____ the project as planned; we’ll....(B. Complete)153. I called Hannah many times yesterday evening, but I couldn’t get through. Her brother ______ on the phone all the time!(A. was talking)154. _____ you’re got a chance, you might...(A. Now that)155. ____ the project one month earlier, they decided...D. Having accomplished)156. ____ is known to everybody, Taiwan is a part of China.(B. As)157. ______ the flood, the ship would have ....(D. But for)158. ____ is usually the chief enemy of the camera lens.(C. Moisture)1. A person who turns what someone... __(translate)2. Both of the twin brothers are capable of doing _ (technique).3. enjoy the ____ of the new house. (decorate)4. Give up smoking. Your _____ will improve soon. (healthy)5. He can’t be a good teacher because he has no _ (patient)6. He is always ____ in the class. (act)7. It took several months for the two...__(agree)8. It is a_____day, isn’t it? (rain)9. It is _____ that you have been 56 ... (believe)10. It began to rain___as soon as I got home. (heavy)11. It is_____that the problem is worked out today. (importance)12. I wish I will be a_____one day. (sing)13. I want to rent a more ____ room. (comfort)14. I have no ____ in recommending her for the job. (hesitate)15. I think Japanese grammar is much more __(difficulty)...16. Mary is the __ (luck)17. My husband used to smoke _ (heavy)18. Please confirm your _(accept)19. Please keep us_____of any developments. (inform)20. She may be _____. (sleep)21. Tom’s success in his career will be a great_ (satisfy)22. The system is corrupt and _____. (just)23. The __________of P eople’s Republic...,1949. (establish)24. The father was ____ to see his son. (delight)25. The mother was____to see his daughter. (delight)26. The____at the lectures on American...(attend)27. The local people are very _. (friend)28. The priest was a man of deep ____(sincere).29. The____came as no great surprise. (announce)30. The local hot springs are very __ (help)31. These books are ____ for English learners. (use)32. These chemicals are _ (harm)33. That was an ____ year. (event)34. This model of typewriter... __(practice) ___24._(response)35. We worried about the ____ of the report. (accurate)36. We’d better postpone the ____ next week. (discuss)37. We have made good ____ for the exam. (prepare)38. When I was young, I had __(romance) ___ ideas of ...39. You must_ (connection)。
质 点 运 动 学一.选择题:1、质点作匀速圆周运动,其半径为R ,从A 点出发,经过半圆周到达B 点,则在下列各 表达式中,不正确的是 (A )(A )速度增量 0=∆v ,速率增量 0=∆v ; (B )速度增量 j v v 2-=∆,速率增量 0=∆v ; (C )位移大小 R r 2||=∆ ,路程 R s π=; (D )位移 i R r 2-=∆,路程 R s π=。
2、质点在平面上运动,已知质点位置矢量的表达式为j bt i at r 22+=(其中a 、b 为常量)则该质点作 ( D )(A )匀速直线运动; (B )一般曲线运动; (C )抛物线运动; (D )变速直线运动。
3、质点作曲线运动,r 表示位置矢量,s 表示路程,v 表示速度, a 表示加速度。
下列表达式中, 正确的表达式为 ( B )(A )r r ∆=∆|| ; (B) υ==dt s d dt r d ; (C ) a dtd =υ; (D )υυd d =|| 。
4、一个质点在做圆周运动时,则有 ( B )(A )切向加速度一定改变,法向加速度也改变;(B )切向加速度可能不变,法向加速度一定改变;(C )切向加速度可能不变,法向加速度不变;(D )切向加速度一定改变,法向加速度不变。
5、质点作匀变速圆周运动,则:( C )(A )角速度不变; (B )线速度不变; (C )角加速度不变; (D )总加速度大小不变。
二.填空题:1、已知质点的运动方程为x = 2 t -4 t 2(SI ),则质点在第一秒内的平均速度 =v -2 m/s ; 第一秒末的加速度大小 a = -8 m/s 2 ;第一秒内走过的路程 S = 2.5 m 。
2、xoy 平面内有一运动的质点,其运动方程为 j t i t r 5sin 105cos 10+=(SI ),则t 时刻其速度=v j t i t 5cos 505sin 50+- ;其切向加速度的大小a t = 0 ;该质点运动的轨迹是 圆 。
推拿治疗填空选择题(资料参考)推拿治疗学一、填空题1.推拿又称按摩、按跷。
2.最早的按摩专著是《黄帝岐伯按摩十卷》3.《医宗金鉴·正骨心法要旨》中记载的正骨八法是:摸、接、端、提、推、拿、按、摩。
4.推拿治疗的基本作用是:调整脏腑,疏通经络,行气活血,理筋整复。
5.影响推拿治疗作用的三要素是手法作用的性质和量;被刺激部位或穴位的特异性;机体的功能状态。
6.推拿治疗的八种基本治法是温、通、补、泻、汗、和、散、清。
7.推拿治疗的基本原则是治未病;治病求本;扶正祛邪;调整阴阳;三因制宜。
8.握拳试验阳性提示_桡骨茎突狭窄性腱鞘炎_。
9.压顶实验阳性提示_颈神经根_损伤。
10.“4”字试验阳性提示_骶髂关节疾病_。
11.半月板损伤最明显的表现是关节弹响和_交锁征_。
12.屈颈试验阳性提示_腰椎间盘突出_。
13.臂丛神经牵拉试验阳性提示_颈部神经根受压_。
14.抽屉试验阳性提示_交叉韧带损伤_。
15.搭肩试验阳性提示_肩关节脱位_。
16.浮髌试验阳性提示_膝关节腔内有积液_。
17.密耳试验阳性提示——网球肘。
18.脊髓型颈椎病常首先出现下肢运动、感觉功能障碍。
19.肩关节周围炎的主症是肩部疼痛和功能障碍。
20.肩周炎又称为“五十肩”、“冻结肩”。
21.正常腰椎运动的角度是前屈可达 80~90度,后伸运动可达30°度,侧弯运动可达20~30度,旋转运动可达 30 度。
22.直腿抬高在治疗腰椎间盘突出症时有_松解粘连_的作用。
23.冈上肌肌腱炎的压痛常位于_冈上肌肌腱的止点_;肱二头肌长头腱滑脱主要在_结节间沟处_有明显压痛;肱二头肌短头腱损伤在__肩关节前内侧喙突部__有明显压痛;肩峰下滑囊炎在肩关节外侧肩峰下和__大结节处__有明显的局限性压痛。
24._肱骨外上髁_、_内上髁_和_尺骨鹰嘴_所构成的“肘三角”有无改变,对鉴别脱位和骨折有实际意义。
25.冈上肌起于_起于冈上窝_,止于_止于肱骨大结节上部_,冈上肌肌腱炎的压痛点在_位于冈上肌肌腱的止点_,外展试验时出现_60。
外国教育教学史教程填空选择题第一章远古及东方文明古国的教育一、填空题1.学校产生于奴隶社会初期。
2.学校在国家出现之后产生,首先是适应统治阶级巩固政权的需要。
3.古代文明古国是古代埃及、古代印度、古代巴比伦、古代希伯来。
4.外国早期原始人的化石发现于东非的坦桑尼亚。
5.中外学术界关于教育起源这个问题比较有代表性的观点分别是生物起源说、心理起源说、劳动起源说、需要起源说。
6.母系氏族时期出现的教育机构的胚胎形式称为青年之家。
二、选择题1.外国教育史上最古老的学校是 A 的宫廷学校。
A.古代埃及B.两河流域C.古代印度D.古代希腊2.古代埃及的寺庙学校着重 D 。
A.文雅教育B.职官教育C.书吏教育D.科学教育3.古代埃及学校的教育方法十分 D 。
A.生动活泼B.直观有趣C.严肃认真D.简单粗暴4.古代埃及的学校教育除了宫廷学校、职官学校之外,还有A 等。
A.寺庙学校B.教区学校C.文法学校D.修辞学校5.在公元前8世纪以后出现于古印度的婆罗门学校中,教师被称为B .(2009)A.“拉比”B.“古儒”C.“书吏”D.“校父”第二章古代希腊的教育一、填空题1.“三艺”是辩证法、文法、修辞学。
2.古代希腊体育的五项竞技项目是赛跑、跳跃、掷铁饼、投标枪、角力(摔跤)。
3.古代雅典教育的基本特点是_要求身心和谐发展_。
4.古代斯巴达和雅典的教育都是为奴隶主阶级的统治服务的。
5.“教仆”是古代雅典伴随奴隶主儿童到学校受教育的仆人。
6.“三艺”为“智者派”所创。
7.在荷马时代,希腊人最为重视的道德品质是智慧、勇敢、节制、正义。
8.柏拉图的教育代表作是《理想国》。
9.古代西方第一个完整的学校教育制度体系是柏拉图提出的。
10.亚里士多德的教育代表作是《政治学》。
11.苏格拉底以其“知识助产术”而著称于世界教育史。
12._亚里士多德在西方教育史上第一次论述了身心和谐发展教育问题。
13.在西方教育思想史上,被称为三个里程碑的是柏拉图的《理想国》、卢梭的《爱弥儿》、杜威的《民主主义与教育》。
三基小题训练一一、选择题(本大题共12小题,每小题5分,共60分.在每小题给出的四个选项中,只有一项是符合题目要求的)1.函数y =2x +1的图象是 ( )2.△ABC 中,cos A =135,sin B =53,则cos C 的值为 ( )A.6556B.-6556C.-6516D. 65163.过点(1,3)作直线l ,若l 经过点(a ,0)和(0,b ),且a ,b ∈N *,则可作出的l 的条数为( )A.1B.2C.3D.多于34.函数f (x )=log a x (a >0且a ≠1)对任意正实数x ,y 都有 ( )A.f (x ·y )=f (x )·f (y )B.f (x ·y )=f (x )+f (y )C.f (x +y )=f (x )·f (y )D.f (x +y )=f (x )+f (y )5.已知二面角α—l —β的大小为60°,b 和c 是两条异面直线,则在下列四个条件中,能使b 和c 所成的角为60°的是( )A.b ∥α,c ∥βB.b ∥α,c ⊥βC.b ⊥α,c ⊥βD.b ⊥α,c ∥β6.一个等差数列共n 项,其和为90,这个数列的前10项的和为25,后10项的和为75,则项数n 为 ( )A.14B.16C.18D.207.某城市的街道如图,某人要从A 地前往B 地,则路程最短的走法有 ( )A.8种B.10种C.12种D.32种8.若a ,b 是异面直线,a ⊂α,b ⊂β,α∩β=l ,则下列命题中是真命题的为( )A.l 与a 、b 分别相交B.l 与a 、b 都不相交C.l 至多与a 、b 中的一条相交D.l 至少与a 、b 中的一条相交9.设F 1,F 2是双曲线42x -y 2=1的两个焦点,点P 在双曲线上,且1PF ·2PF =0,则|1PF |·|2PF |的值等于( ) A.2B.22C.4D.810.f (x )=(1+2x )m +(1+3x )n (m ,n ∈N *)的展开式中x 的系数为13,则x 2的系数为( )A.31B.40C.31或40D.71或8011.从装有4粒大小、形状相同,颜色不同的玻璃球的瓶中,随意一次倒出若干粒玻璃球(至少一粒),则倒出奇数粒玻璃球的概率比倒出偶数粒玻璃球的概率( )A.小B.大C.相等D.大小不能确定12.如右图,A 、B 、C 、D 是某煤矿的四个采煤点,l 是公路,图中所标线段为道路,ABQP 、BCRQ 、CDSR 近似于正方形.已知A 、B 、C 、D 四个采煤点每天的采煤量之比约为5∶1∶2∶3,运煤的费用与运煤的路程、所运煤的重量都成正比.现要从P 、Q 、R 、S 中选出一处设立一个运煤中转站,使四个采煤点的煤运到中转站的费用最少,则地点应选在( )A.P 点B.Q 点C.R 点D.S 点二、填空题(本大题共4小题,每小题4分,共16分.把答案填在题中横线上)13.抛物线y 2=2x 上到直线x -y +3=0距离最短的点的坐标为_________.14.一个长方体共一顶点的三个面的面积分别是2,3,6,这个长方体对角线的长是_________.15.设定义在R 上的偶函数f (x )满足f (x +1)+f (x )=1,且当x ∈[1,2]时,f (x )=2-x ,则f (8.5)=_________.16.某校要从甲、乙两名优秀短跑选手中选一名选手参加全市中学生田径百米比赛,该校预先对这两名选手测试了8次,测试成绩如下:第1次 第2次 第3次 第4次 第5次 第6次 第7次 第8次 甲成绩(秒) 12.1 12.2 13 12.5 13.1 12.5 12.4 12.2 乙成绩(秒)1212.412.81312.212.812.312.5根据测试成绩,派_________(填甲或乙)选手参赛更好,理由是____________________. 答案:一、1.A 2.D 3.B 4.B 5.C 6.C 7.B 8.D 9.A 10.C 11.B 12.B二、13.(21,1) 14.6 15. 21三基小题训练二一、选择题:本大题共12小题,每小题5分,共60分.在每小题给出的四个选项中,只有一项是符合题目要求的.1.如图,点O 是正六边形ABCDEF 的中心,则以图中点 A 、B 、C 、D 、E 、F 、O 中的任意一点为始点,与始点不 同的另一点为终点的所有向量中,除向量OA 外,与向量OA 共线的向量共有( )A .2个B . 3个C .6个D . 7个2.已知曲线C :y 2=2px 上一点P 的横坐标为4,P 到焦点的距离为5,则曲线C 的焦点到准线的距离为 ( )A . 21B . 1C . 2D . 43.若(3a 2 -312a ) n 展开式中含有常数项,则正整数n 的最小值是 ( )A .4B .5C . 6D . 84. 从5名演员中选3人参加表演,其中甲在乙前表演的概率为 ( )A . 203B . 103C . 201D . 1015.抛物线y 2=a(x+1)的准线方程是x=-3,则这条抛物线的焦点坐标是( ) A.(3,0) B.(2,0) C.(1,0) D.(-1,0)6.已知向量m=(a ,b ),向量n⊥m,且|n|=|m|,则n的坐标可以为( ) A.(a ,-b ) B.(-a ,b ) C.(b ,-a ) D.(-b ,-a )7. 如果S ={x |x =2n +1,n ∈Z },T ={x |x =4n ±1,n ∈Z },那么A.S TB.T SC.S=TD.S ≠T8.有6个座位连成一排,现有3人就坐,则恰有两个空座位相邻的不同坐法有 ( )A .36种B .48种C .72种D .96种9.已知直线l 、m ,平面α、β,且l ⊥α,m β.给出四个命题:(1)若α∥β,则l ⊥m ; (2)若l ⊥m ,则α∥β;(3)若α⊥β,则l ∥m ;(4)若l ∥m ,则α⊥β,其中正确的命题个数是( )A.4B.1C.3D.2EF DOC BA10.已知函数f(x)=log 2(x 2-ax +3a)在区间[2,+∞)上递增,则实数a 的取值范围是( )A.(-∞,4)B.(-4,4]C.(-∞,-4)∪[2,+∞)D.[-4,2)11.4只笔与5本书的价格之和小于22元,而6只笔与3本书的价格之和大于24元,则2只笔与3本书的价格比较( )A .2只笔贵B .3本书贵C .二者相同D .无法确定12.若α是锐角,sin(α-6π)=31,则cos α的值等于 A.6162- B. 6162+ C. 4132+ D. 3132-二、填空题:本大题共4小题,每小题4分,共16分.答案填在题中横线上. 13.在等差数列{a n }中,a 1=251,第10项开始比1大,则公差d 的取值范围是___________.14.已知正三棱柱ABC —A 1B 1C 1,底面边长与侧棱长的比为2∶1,则直线AB 1与CA 1所成的角为 。
第一章古代希腊罗马文学一、填空题1、希腊神话包括_神的故事___和__英雄传说___两部分。
2、希腊神话的主要特点是__神、人同形同性___。
3、荷马史诗包括__《伊利昂纪》;__和__《奥德修纪》__两部史诗,它们是欧洲文学史中最早的重要作品,分别描写的是__特洛亚战争__的故事和__战后奥德修斯历尽艰辛回家团聚__的故事。
4、荷马史诗中《伊利昂纪》的情节以_阿喀琉斯__的愤怒为中心展开,《奥德修纪》的情节以_奥德修斯__的历险为主线。
5、《伊利亚特》和《奥德赛》中的比喻极为丰富,大量使用了从日常生活和自然现象中选取来的比喻,后人称之为“荷马式比喻”。
6、被誉为“悲剧之父”、“戏剧艺术的荷马”的古希腊悲剧家分别是__埃斯库罗斯和索福克勒斯,代表作分别是__《被缚的普罗米修斯》;___和_《俄狄浦斯王》____。
7、古希腊“喜剧之父”是___阿里斯托芬___,他的表现反战思想的作品是_《阿卡奈人》___8、被称为“舞台上的哲学家”和“心理戏剧鼻祖”的是___欧里庇得斯__,他的代表作品是__《美狄亚》__。
9、亚里斯多德的文艺理论论著是《诗学》_,其中提出的__摹仿说10古希腊文学___为西方现实主义文艺理论奠定了基础。
10、古罗马文学除了自己独特的贡献外,还是_古希腊文学___与___欧洲近代文学_之间的桥梁,起到了继往开来的作用。
11、古罗马文学“黄金时代”最重要的代表作家是___奥维德__、____贺拉斯____和__维吉尔__。
12、《变形记》是一部__诗歌_总集,它是__奥维德__的代表作。
13、贺拉斯的著名文艺理论著作__《诗艺》____是_诗简__体。
14、古罗马喜剧作家普罗图斯的代表作有_《一坛黄金》__和__《孪生兄弟》___,这两部作品分别对莫里哀的_《悭吝人》__和莎士比亚的的__《错误的喜剧》__创作有很大影响。
15、阿普列尤斯的作品___《变形记》或《金驴记》___是欧洲最早的___长篇小说___。
浮力经典习题一、填空题1、体积相等的实心铁球和铝球都浸没在水中静止时,它们受到的浮力F铝F铁(ρ铝<ρ铁)而体积相等的实心木球和铁球浸入水中静止时,它们受到的浮力F铁F木(ρ木<ρ水<ρ铁)2、有一正方体物块,边长是0.1m,把它放入水中刚好悬浮,如果它的下表面受到水向上的压力是15 N,下表面受到水的压强是Pa;上表面受到水的压强是Pa;上表面受到水向下的压力是N;物体受到浮力是N。
(g=10N/kg)3、排水量为2000t的轮船,在河水中航行时,船及所装货物共重N,受到河水的浮力N,若河水的密度是ρ水=1.0×103kg/m3,则船排开水的体积是m3,4、一实心物体,放在水中静止时,有2/5的体积露出水面,则物体密度是kg/m3。
5、一容器盛满水将一密度为0.8×103kg/m3,体积为500 cm3的木块轻轻放入水中,溢出水的体积为cm3。
6、(1)一木块,把它放在盛满水的杯中,溢出10g水,若把它放在盛满酒精的杯中,溢出酒精的质量g(ρ木=0.6×103kg/m3)(2)一蜡块,把它放在盛满水的杯中,溢出10g水,若把它放在盛满酒精的杯中,溢出酒精的质量g (ρ蜡=0.9×103kg/m3)(3)一铁块,把它放在盛满水的杯中,溢出10g水,若把它放在盛满酒精的杯中,溢出酒精的质量g (ρ铁=7.9×103kg/m3)7、人们常用盐水来选种,当把种子放入盐水中时,所有的种子都未浮起来,为了使不饱满的种子浮起,应在盐水中加,当不饱满的种子浮在水面时,它所受的浮力重力。
8、在弹簧测力计下,挂一个体积为5×10-5m3的合金块浸没在水中,此合金块受到的浮力是N,这时测力计的示数是N(ρ合金=4×103kg/m3),g=10N/kg)9、一空心铜球,质量89g,将其浸没水中时恰好悬浮,则空心部分体积是cm3。
(ρ铜=8.9×103kg/m3)10、某潜艇从长江潜行到东海某地执行任务,它悬浮在江面下时所受的重力和浮力分别是G1、F1,悬浮在海面下时所受的重力和浮力分别是G2、F2,则:G1G2,F1F2。
第一章绪论一、填空1、造成环境污染的因素有物理、化学和生物的三方面,其中化学物质引起的约占__80%-90%_。
2、环境化学研究的对象是:环境污染物。
3、环境中污染物的迁移主要有机械、物理-化学和生物迁移三种方式。
4、人为污染源可分为_工业_、__农业_、__交通_、和__生活_。
5、如按环境变化的性质划分,环境效应可分为环境物理、环境化学、环境生物三种。
二、选择题1、属于环境化学效应的是 AA热岛效应B温室效应C土壤的盐碱化D噪声2、五十年代日本出现的痛痛病是由___A _污染水体后引起的A CdB HgC PbD As3、五十年代日本出现的水俣病是由_B__污染水体后引起的A CdB HgC PbD As第二章大气环境化学一、填空题1、写出下列物质的光离解反应方程式:(1)NO2+ hν NO + O(2)HNO2 + hν HO + NO 或HNO2 + hν H + NO2(3)HNO3 + hν HO + NO2(4)H 2CO + hν + HCO 或H2CO + hν H2+ CO(5)CH 3X + hν + X2、大气中的NO2可以转化成HNO3、NO3和HNO3等物质。
3、碳氢化合物是大气中的重要污染物,是形成光化学烟雾的主要参与者。
4、乙烯在大气中与O3的反应机理如下:CH2(O3)CH2O3 + CH2 == CH2H2CO+H2COO5、大气颗粒物的去除与颗粒物的粒度、化学组成和性质有关,去除方式有干沉降和湿沉降两种。
6、制冷剂氯氟烃破坏臭氧层的反应机制是:CFmCln + hv CFmCln-1 + ClCl + O3O2 + ClOClO +O O2 + Cl7、当今世界上最引人瞩目的几个环境问题中的____温室效应_____、___臭氧层破坏_______、光化学烟雾___等是由大气污染所引起的。
8、大气颗粒物的三模态为__爱根核模__、__积聚模___、_粗粒子模__。
名著《红星照耀中国》基础练习(填空选择)及答案一、填空题1. 《红星照耀中国》又名《》,是国著名记者的不朽名著,是一部文笔优美的纪实性很强的报道性作品。
作者真实记录了自至在中国西北革命根据地(以延安为中心的陕甘宁边区)进行实地采访的所见所闻,向全世界真实报道了和以及许多红军领袖、红军将领的情况,先后被译为二十多种文字,几乎传遍了全世界。
2. 《红星照耀中国》题目中“红星”象征着,3. 埃德加·斯诺在《红星照耀中国》一书写道“冒险、探索、发现、勇气、胜利和狂喜、艰难困苦、英勇牺牲、忠心耿耿,这些千千万万青年人的经久不衰的热情,始终如一的希望,令人惊诧的革命乐观情绪,像一把火焰,贯穿着这一切,他们无论在人力面前,或者在大自然面前,上帝面前,死亡面前,都绝不承认失败。
”这是斯诺对的评价。
4. “我家分成两‘党’。
一党是我父亲,是。
党由我、母亲、弟弟组成,有时连也包括在内。
可是在反对党的‘统一战线’内部,存在着意见分歧。
我母亲主张间接打击的政策。
凡是明显的感情流露或者公开反抗执政党的企图,她都批评,说这不是中国人的做法。
”5.在《红星照耀中国》中,斯诺探求了发生的背景、发生的原因。
他判断由于的宣传和行动,使穷人和受压迫者对国家、社会与个人有了必须行动起来的新的信念。
6.《红星照耀中国》充满了国际主义精神。
加拿大医生不远万里来到中国,支持中国的革命事业,不幸的是在一次战役中因细菌感染而献出了生命。
7.在漫长的艰苦的征途上,有成千上万的人倒下了,可是另外又有成千上万的人——农民、、奴隶、、工人、一切赤贫如洗的人们——参加进来充实了行列。
8. 斯诺认为,绝不要以为将军早年当过土匪,就必然没有资格做领袖了。
这样在世界引起巨大轰动。
1938年2月在上海出版中译本时由于当时抗日战争已经开始考虑到联合统一战线等情况书名改为《》。
11.书中对的描写最为详尽,文中写到他是一个很有幽默感的人,也是一个很不讲究外在的一个人。
Unit 21. The ______ of College English Tests is to help students learn English better, isn't it?A. objectingB. subjectC. objectiveD. aiming2. They have used the cinema as a weapon, as a(n) ____ to express their views.A. mediaB. mediumC. aidsD. mean3. These shops normally ______ in old and antique (古董) items, not in modern ones.A. buyB. makeC. specializeD. sell4. Some senior (年长的) members from the visiting team made a good number of enquiries (询问) about what they saw in order to ______ additional information.A. advertiseB. gainC. knowD. remember5. The book is endlessly ______ and richly rewarding; I highly recommend it to you.A. boringB. dullC. fascinatingD. expensive6. It's very expensive to ________ on television.A. advertiseB. advertisingC. advertiserD. advertised7. How would a person who stays abroad most probably _____ when he or she is frustrated by the culture shock (文化冲击)?A. rememberB. respectC. recallD. react8. Some sentences are written just to give the _____ of the difficult words—words that readers will need to know in order to understand what they are reading.A. definitionsB. textsC. spellingsD. formsUnit51. Crowds ____ the narrow sidewalks and overflowed (涌向) into the street.A. tookB. jammedC. RanD. walked2. Her father ____ nothing in her education that might make her the most accomplished (有造诣的) woman of her age.A. thoughtB. paidC. thankedD. omitted3. He saw the ____ of a house against the sky.A. outlookB. outlineC. outsideD. outfit4. Too much direct sunlight will ____ the plant.A. harmB. holdC. helpD. heat5. When we went to the coast we stayed in a holiday ____.A. vacationB. campC. placeD. site6. The company ____ 2,000 people worldwide.A. coversB. usesC. employsD. owns7. We were unable to offer this service because I hadn't got the ____ to cope with it.A. officeB. personnelC. ideaD. thought8. The fat old man looked ____ in his tight white trousers.A. ridiculousB. fineC. WellD. sorryUnit 11.led by the party, we are marchingvictory to victory2. she grewin comfortable surroundings; she never experienced any difficulties when she was young.3. luck would have it,I did not catch the plane that exploded shortly after it took off.4. He pushed his way the crowd.5. Teach a child the way he should go, and when he is old, he will not depart it.6. The airline decides to replace its small planes Boeing747s.7. He is keen all kinds of alcohol-beer, whisky, and so forth.8. The doctor diagnosed his condition a stomach problem.Unit 21.When you see someone you know,or would like to make contact,smile.2.In the noisy classroom the teacher had to shoutto be heard by everyone.3.After she became a lawyer,she decidedspecializecontractlaw.4.The patient is waiting patiently in the waiting room of the clinic,leafingthe magazines and newspapers on the table.5.In new surroundings,it's best to take on one challengea time.6.I knew rightthe beginning that it would not pay.7.Women must fight for the rightequal pay equal work.8.The new products will ensure our company staysbusiness.Unit31、It’s still unknown whether the project we have been Workingwill yield a high return of investment.2、The river which goes the city makes itself a popular summer resort.3、Don’t talk too much when your boss is no mood for chatting over the phone.4、John would, sooner or later, involve himself serious trouble if he continued to do this with evil intention.5、The employer reacted the depression by dismissing dozens of his employees.6、Soon the earthquake, many people who had been evacuated from the area returned to rebuild their hometown.7、The old man likes to reflect his childhood while drinking with his friends.8、He has been transferred a new company in Europe to be responsible for sales and distribution activities.Unit41、He stood top of a car , giving a speech to the excited crowds .2、I could hardly believe that what he said turned to be true.3、The Football Association is likely to call a ban on alcohol at football games.4、The street was sealed yesterday when a bomb had been found in the car driven by a young man.5、We should get moving this; otherwise we cannot complete the project in July.6、She felt uneasy asking him to do her a big favor at this moment.7、They are still checking the cause of the air crash that happened on Monday morning.8、Don’t you hate it when someone hangs before you have finished speaking?Unit51、Being quite well-educated and experienced, heserves an adviser in the government.2、A child does things the same way as his mother does.3、He works hard to earn more money to keep his son at school the hopethat his son can go to college.4、He named his new-born baby the great scholar in ancient China.5、No one can stop him going on with his studies.6、When the two men were fighting on the street, the police stepped .7、By adjusting the bedrooms of these two students, the counselorironed the conflicts between them.8、He always makes fun others, so almost everyone dislikes him.Unit71. She turned _____ his invitation to go on a holiday with him, claiming that she was extremely busy at that time.2. He focuses his attention ____ learning how to treatpatients with Chinese herbs (中草药).3. He tried hard to go ____ his ultimate (最终的) goal, but ended up in failure.4. She was tiny, weighing only 5 pounds ____ birth.5. He chose to be alone for a while ____ purpose because he wanted to concentrate on thinking over the problem.6. All our hopes lay ____ him, but he disappointed us.7. He was told not to take ____ more responsibilities than hecould handle when he worked for the oil company.8. We will not give ____ our efforts until we have found a solution to the delicate (微妙的) problem.。