2011年高水平大学自主选拔学业能力测试(AAA测试)考试说明及题型示例

2011年高水平大学自主招生选拔学业能力测试数学注意事项：1. 答卷前，考试务必将自己的姓名、准考证号填写在答题卡上。

2. 将答案写在答题卡上，写在本试卷上无效。

3. 考试结束后，将本试卷和答题卡一并交回。

一、选择题：本大题共10小题，每小题3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）设复数z 满足|z|<1且15|z+|2z=，则|z |=（ ） A 45 B 34 C 23 D 12解析：设|z |a bi =+代入15|z+|2z =整理得22221174a b a b ++=+，又|z |<1，所以2214a b +=，|z |=12=（2）在正四棱锥P-ABCD 中，M 、N 分别为PA 、PB 的中点，且侧面与底面所成二面角的正切.则异面直线DM 与AN 所成角的余弦值为（ ） A13 B 16 C 18 D 112解析：设2AB =,容易算出2PB =,以底面中心为原点建立空间坐标系，1111(1,1,0),(1,1,0),(,,(,,222222D A M N ------，由1cos 6|DM AN ||DM ||AN |θ⋅==⋅uuu u r uuu ruuuu r uuu r （3）过点(1,1)-的直线l 与曲线3221y x x x =--+相切，且(1,1)-不是切点，则直线l 的斜率是（ ）A 2B 1C 1-D 2-解析：32221(),()322y x x x f x f x x x '=--+==--，设切点(),()t f t ，()()()y f t f t x t '-=-，把(1,1)-代入且1t ≠-得到1t =，所以2k =-（4）若23A B π+=,则22cos cos A B +的最小值和最大值分别为（ ）A.312-， B.1322，C.11D.112， 解析：2222211cos cos cos cos ()1cos(2)323A B A A A ππ+=+-=++，选B （5）如图，1O e 和2O e 外切于点C ，1O e ，2O e 又都和O e 内切，切点分别为,A B . 设AOB ACB αβ∠=∠=，，则（ ） A cos sin02αβ+= B sin cos02αβ-=C sin 2sin 0βα+=D sin 2sin 0βα-= 解析：连接12O O 过点C ，设12CAO CBO ∠=∠∠=∠，，12O C O C 、，则+1+2=+21+22=βαπ∠∠∠∠,即2=βαπ-，只有D 是错的。

2011年高水平大学自主选拔学业能力测试阅读与写作（第二部分）注意事项：1．答卷前，考生务必将自己的姓名、准考证号填写在答题卡上。

2．将答案写在答题卡上，写在本试卷上无效。

3．考试结束后，将本试卷和答题卡一并交回。

Section I ReadingPart ARead the following text. Choose the best word or phrase for each numbered blank. (30 points)Emotions do not occur and are not expressed only because an individual has evaluated an event in a certain way, but also because social relations are involved. The experience, and expressions of emotions generally imply a __1__ in relationships with others. __2__ the example of a team member being angry because of an insult. When this insult is regarded as a major __3__, the psychological distance between these two team members will increase. In fact, the __4__ are that their relationship will never be the same __5__ one team member continues to remember the other‟s insulting act and develops deep distrust.__6__, expressing our anger may also serve to repair the hurt relationship, either because it __7__ that we have been insulted or it serves to prevent similar instances occurring again. __8__ anger obviously implies an attack on a person and thereby creates distance, either __9__ or more permanently, other emotions such as love, happiness, but also regret, shame, or guilt, act to __10__ the distance between two people. Nearly all emotions can reflect a change in social relations, such as distancing, attacking, withdrawing, or approaching.We may __11__ three major social functions of expressing emotions. First, emotions serve to create and maintain social bonds. Most positive emotions like joy or love enhance social bonds because they are __12__ by the tendency to approach others, and to emphasize the __13__ bond between persons. __14__, the expression ofnegative emotions such as shame and guilt also improves social bonds, because they __15__ an effort or desire to make up __16__ our faults. The second major function of emotion expression is to indicate a need for social __17__. The expression of fear or frustration displays our powerlessness and __18__ to cope with a situation, thereby requesting others for help. A third important function is the establishment of our social position, __19__ power, control, or superiority. The expression of anger, for instance, shows interdependent others their place and imposes our will __20__ others.1.[A] change [B] concession [C] difference [D] distance2.[A] Cite [B] Consider [C] Use [D] Set3.[A] indifference [B] influence [C] injustice [D] intention4.[A] findings [B] dangers [C] chances [D] advances5.[A] although [B] because [C] until [D] unless6.[A] Alternatively [B] Apparently [C] Comparatively [D] Generally7.[A] clarifies [B] defines [C] explains [D] illustrates8.[A] If [B] Since [C] When [D] While9.[A] constantly [B] currently [C] instantly [D] temporarily10.[A] reduce [B] lessen [C] erase [D] connect11.[A] categorize [B] confirm [C] divide [D] distinguish12.[A] characterized [B] indicated [C] represented [D] symbolized13.[A] conscious [B] harmonious [C] obvious [D] previous14.[A] Hence [B] However [C] Moreover [D] Therefore15.[A] produce [B] require [C] signal [D] spare16.[A] against [B] for [C] over [D] to17.[A] benefit [B] contact [C] recognition [D] support18.[A] weakness [B] reluctance [C] inability [D] ignorance19.[A] by means of [B] for reasons of [C] in terms of [D] on grounds of20.[A] above [B] in [C] onto [D] uponPart BIn the following article, some sentences or paragraphs have been removed. For questions 21 to 25, choose the most suitable one from the list A-F to fit into each of the numbered gaps. There is ONE which does not fit in any of the gaps. (15 points)If you‟re not rich and you get sick, in which industrialized country are you likely to get the best treatment? The conventional answer to this question has been: anywhere but the United States. With its many uninsured citizens and its relatively low life expectancy, the United States has been reduced to the bottom of international health scorecards.But Samuel H. Preston, a prominent researcher at the University of Pennsylvania, has taken a closer look at the growing body of international data, and he finds no evidence that America‟s health care system is to blame for the longevity gap between“The U.S. actually does a pretty good job of identifying and treating the major diseases,” says Dr. Preston. “Th e international comparisons don‟t show we‟re in dire straits.”No one denies that the American system has problems, including its extraordinarily high costs and unnecessary treatments. But Dr. Preston and otherresearchers say that the costs aren‟t solelyAn American‟s life expectancy at birth is about 78 years, which is lower than in most other affluent countries. Life expectancy is about 80 in the United Kingdom, 81 in Canada and France, and 83 in Japan, according to the World Health Organization.Many of those deaths have been attributed to the health care system, an especially convenient target for those who favor a European alternative.But there are many more differences between Europe and the United States than just the health care system. Americans are more ethnically diverse. They eat different food. They are fatter. Perhaps most important, they used to be exceptionally heavy smokers. For four decades, until the mid-1980s, per-capita cigarette consumption wasAs it is, the longevity gap starts at birth and persists through middle age, but then it eventually disappears. If you reach 80 in the United States, your life expectancy is longer than in most other developed countries. The United States is apparently doing something right for its aging population, but what? One frequent answer has been Medicare. Its universal coverage for people over 65 has often been credited withshrinking the longevity gap between the United States and other developed countries.But when Dr. Preston and his colleagues looked at mortality rates in 1965, before Medicare went into effect, they found an even more pronounced version of today‟s pattern: middle-aged people died much more often in the United States than in other developed countries, but the longevity gap shrunk with age even faster than today. In that pre-Medicare era, an American who reached 75 could expect to live longer than most people elsewhere.But Dr. Preston says he saw no evidence for the much-quoted estimates that poor health care is responsible for more preventable deaths in the United States than in other developed countries.[A] This longevity gap, Dr. Preston says, is primarily due to the relatively high ratesof sickness and death among middle-aged Americans, chiefly from heart disease and cancer.[B] Besides smoking, there could be lots of other reasons that Americans areespecially unhealthy in middle age.[C] In fact, the American system in many ways provides superior treatment evenwhen uninsured Americans are included in the analysis.[D] Dr. Preston acknowledges that the United States might do more to keep youngand middle-aged people from getting sick, but he says it‟s not clear that other countries‟ systems are more effective.[E] Americans pay more for health care partly because they get more thoroughtreatment for some diseases, and partly because they get sick more often than people in Europe and other industrialized countries.[F] Dr. Preston and other researchers have calculated that if deaths due to smokingwere excluded, the United States would rise to the top half of the longevity rankings for developed countries.Part C26.Read the following text and summarize it in Chinese. You should write approximately 200 characters. (20 points)Every time famous people such as pop star Madonna and actor Angelina Jolie decide to adopt a child from a developing country, they set off the same old debate: is it right to create a rainbow family and should the developing world be insulted by the suggestion that we cannot take care of our children?But away from publicity, foreigners have been adopting children from poorer nations for decades. Many of these children gain secure homes and loving families. They illustrate all the benefits of cross-country and cross-cultural adoption and reveal none of its risks.Overseas adoption has its own logic. Leila Baig, secretary of the Delhi-based Central V oluntary Adoption Resource Agency, says the “reality is that most Indian couples decide on adoption because they cannot have children. There‟s usually a period of distress before this decision and they tend to look for young, healthy children who would fit into their families.”Healthy children under the age of two are placed for adoption within the country. Indian parents generally don‟t adopt older children and those with medical problems. “It‟s an obvious fact that local parents generally want the youngest kids,” says Wendy Andrews, executive officer at Hope Foundation‟s Asharan orphanage in Delhi. She adds that “most older children eventually get adopted abroad.”Countries like India, which have signed the Hague Convention on the protection of children and cooperation in respect of inter-country adoption (1973) give first preference to local adoption. The international agreement requires due consideration to be given to a child‟s upbringing and to his or her racial, religious and cultural background before adoption. In fact, those who criticiz ed Madonna‟s now-failed efforts to adopt three-year-old Malawi girl Mercy James, said the little girl would be best off with relatives.Baig says, “I don‟t believe in famous people‟s adoptions because such people are often too busy and the child is taken care of by attendants or babysitters. The child should get the undivided attention of the parents. But we shouldn‟t condemn all international adoptions. They have the necessary facilities, social security, experience in parenting and feel they have got a lo t out of life and would like to share that.”Interestingly, foreign adoptive families are found to be less selective than localones. “There‟s a desire among most Indian families to adopt children whose physical features match theirs. There is still prejudice against children with dark skin, tribal or North-eastern features etc,” says Baig. But the good news is that there‟s greater social awareness and acceptance of adoption in India as a choice for childless couples. “Earlier, couples would think about ado ption only after 15-20 years of a childless marriage. Now, they are coming at much younger ages,” says Srinath, founder of an adoptive parents‟ association in Bangalore.But this is not borne out by statistics. The number of children adopted by the legal route appears to have actually fallen in the last decade. According to the government‟s Central Adoption Resource Agency, there were 2,533 in-country adoptions in 2001. By 2007, it was down to 2,494. Overseas adoption of Indian children also fell from 1,298 in 2001 to 770 in 2007. “That‟s because there are fewer children available for adoption,” says Baig. “There could be a number of reasons for this: private adoptions; fewer unwanted babies being born because of better awareness about birth control methods; better technology aiding more abortions,” she adds. But overall, the shortage is not of children themselves but …worthy‟ candidates. There‟s a long way to go to provide loving homes to aid orphans and disabled children.Section II WritingPart A27. Translate the following text into English. (10 points)教育的目标，在于培养对知识的鉴别力与良好的行为。

生物学科考试说明Ⅰ．考试性质四川省普通高中生物学科学业水平考试是面向全体普通高中学生的达标性考试；是在教育部指导下，依据普通高中生物课程标准，由省教育厅组织实施的国家考试。

其考试结果，是衡量学生能否毕业的主要依据；是反映普通高中学校教育教学质量的重要指标。

普通高中学业水平考试结果将逐步作为高校招生录取的重要依据之一。

Ⅱ．指导思想学业水平试题的命制是以教育部2003年颁布的《普通高中生物课程标准（实验稿）》和本考试说明为依据，并结合我省普通高中生物教育教学的实际情况进行。

试题以高中教育培养目标和生物课程标准中提出的“知识、能力、情感态度与价值观”三维课程目标为指导，重视对学生生物科学素养的考查；着重考查中学生物课程的基础知识、基本技能、基本能力和科学探究方法；注重理论联系实际，关注生物科学技术、社会经济和生态环境的协调发展；重视对考生情感、态度与价值观的引导。

Ⅲ．考试内容（一）考试范围考试范围包括3个必修模块，即《分子与细胞》、《遗传与进化》和《稳态与环境》。

（二）考试层次要求依据《普通高中生物课程标准（实验稿）》和四川省教育科学研究所编制的《四川省普通高中新课程生物学科教学要求（试行）》提出的学习要求，从低到高依次划分为A（了解层次）、B（理解层次）、C（应用层次）三个层次。

具体说明如下：A（了解层次）：（1）记住所学生物学知识的要点，能够识别有关生物的基本特征，能够简单描述生物学的基本事实。

（2）能够据图识别生物体的微观结构，并填出其相应的生物学名称。

（3）能够说出生物科学技术的主要成就和重要的生物学史实。

（4）举例说出生物学与人类生活、自然环境、科学技术及社会发展的关系。

（5）说出有关实验的材料和基本的方法步骤。

B层次（理解层次）：（1）解释和说明所学生物学知识的含义，能够把握知识之间的内在联系。

（2）准确地说明、解释有关生命现象、基本事实和生理过程的形成原因。

（3）概述出生物的结构特点、生命活动的变化规律、生理过程的基本特征。

2011自主招生AAA测试考题灵活难度由易入难-《阅读和写作》阅读部分(50分)一、现代文阅读：杨福家的《哥本哈根精神》二、现代文阅读：老舍的《五九》三、古代诗文阅读1.辛弃疾《清平乐校检山园，书所见》2.《南齐书良政》断句3.翻译《论语泰伯》《韩非子外储说右下》写作部分(50分)你对忧患意识是怎样认识的？请写一篇文章，谈谈你的思想和认识，角度自选，立意自定，标题自拟；不要编造虚假事实论据，不要套作，不得抄袭。

-《人文与社会》阅读资料，完成11-12题。

2009年以来，北冰洋海域永久性冰盖的范围大幅度退缩，浮冰平均厚度变薄。

11.分析北冰洋冰盖退缩对国际贸易产生的影响。

12.简述北冰洋海域冰情变化对生态环境的影响。

阅读材料，回答问题。

材料一“各级领导干部要自觉贯彻群众路线、切实转变作风，多做顺民意、解民忧、得民心的实事，坚决纠正损害群众利益的行为。

”——胡锦涛材料二某地政府官员以破坏了政府办公楼的“风水”为由要强行拆除一座楼房，遭到抵制后说出了“跟政府作对就是恶”的话，在网络上被称为“最雷人官话”之一。

在现实生活中，政府的具体行为并非总是与民众的意愿一致，有时甚至会产生矛盾冲突。

从人民与政府的关系来看，为什么不能说“跟政府作对就是恶”？-点评整份试卷形成了阶梯式的难度。

切入容易，但是深入难，比如同一篇文章，前几题比较容易，后面的题目就比较难。

作文也是，容易把文章写平淡，要写得有思想性不容易。

——人大附中副校长沈献章>>考题“为什么不能说‘跟政府作对就是恶’”今天的笔试将进行4门考试，上午为中英文的“阅读与写作”，其中10点半前为中文部分，10点半到12点考英语内容。

下午2点30分至5点30分为数学和自然科学(理科)/人文与社会(文科)。

AAA测试在北京共设5个考点，约3700名考生参加。

在6万名参加初试的考生中，有6000名左右报考清华。

清华大学招办主任于涵介绍，AAA测试重点考查学生在课堂上很少甚至没有出现过的环境和情景中综合运用知识的能力，特别是考查考生的创造力、想象力、鉴赏能力和学习能力。

中大2010年自主招生面试题导语：2010年自主招生考试拉开大幕，在上一个周末(1月16日、17日)共有十多所大学举行了自主招生考试，新浪教育在第一时间搜集到了多所大学的自主招生笔试题和面试题，以下为中山大学2010年自主招生面试题。

面试考官由三人构成，一方面针对学生的履历进行提问，同时倾听学生对所选问题的回答，并进行简单互动。

每位同学面试的时间不尽相同，大概在10分钟到20分钟。

你怎么看待开心农场的…偷菜‟行为？”如何看待“偷菜”改为“摘菜”？假如没有光纤会怎样？谈谈太空旅游。

设想一种自主招生的模式。

你怎么看chimerica（中美国）这个单词？孔子、苏东坡名言有哪些？谈谈对孔子“己欲立而立人，己欲达而达人”这句话的理解。

高考网[]1月23日独家报道（北北肖雯）2010年1月23日，中国人民大学自主招生在校本部如期举行。

此次人大自主招生更名为“2010年全国优秀中学生冬令营”，自清华北大上周自主招生过后，作为全国名校之一的中国人民大学也丝毫不逊色，来自东北、山东等全国各地的考生很多，由于只在本部设考点的缘故，比起别的院校明显要热闹很多。

2010年中国人民大学自主招生换了新“名字”，冬日的校园里摆放着这样的招牌格外显眼。

记者从中国人民大学招生网站了解到，该校自主招生复试分为文化课笔试和综合能力面试两部分。

笔试包括语文、数学、英语，报考物理学、化学专业的还须加试物理学或化学，主要考察学生的学习水平和能力，考试范围不超出高考考试大纲，题型也均为常见题型;综合能力面试主要考察考生综合素质，一般不考核具体知识点。

报考美术学专业的面试考察美术基础知识和艺术修养。

此次自主招生考生复试统一在该校本部的公共教学一楼举行，不在京外另设考点。

值得注意的一点是，该校2010年自主选拔录取工作自11月6日开始后，网上共报名近一万人。

由于招生总计划较少，相对来说自主选拔录取的名额也很少，经过该校专家组对考生所在中学的推荐意见和考生的平时成绩、竞赛成绩、特长爱好、专业兴趣和社会工作等各方面综合情况的初审，最终只选拔了少量考生参加复试，入围人数不到报名人数的十分之一，复试后还会有部分考生被淘汰，不得不说竞争相当激烈。

2011年高水平大学自主选拔学业能力测试自然科学注意事项：1．答卷前，考生务必将自己的姓名、准考证号填写在答题卡上。

2．将答案写在答题卡上，写在本试卷上无效。

3．考试结束后，将本试卷和答题卡一并交回。

一、选择题：本大题共10小题，每小题3分，共30分。

在每小题给出的四个选项中，有一个或多个选项是正确的，把正确选项前的字母填在答题卡上。

1．根据玻尔的氢原子理论，当某个氢原子吸收一个光子后，A ．氢原子所处的能级下降B ．氢原子的电势能增大C ．电子绕核运动的半径减小D ．电子绕核运动的动能增大2．如图，纸面内两根足够长的细杆ab 、cd 都穿过小环M ，杆ab 两端固定，杆cd 可以在纸面内绕过d 点并与纸面垂直的定轴转动。

若杆cd 从图示位置开始，按照图中箭头所示的方向，以匀角速度转动，则小环M 的加速度 A ．逐渐增加 B ．逐渐减小 C ．先增加后减小 D ．先减小后增加3．如图，在杨氏双缝干涉实验中，若单色点光源从图示位置沿垂直于SO 的方向向上移动一微小距离，则屏上的干涉条纹将A ．向上移动，间距不变B ．向上移动，间距变大C ．向下移动，间距不变D ．向下移动，间距变大4．一质点沿直线做简谐振动，相继通过距离为16cm 的两点A 和B ，历时1s ，并且在A 、B 两点处具有相同的速率；再经过1s ，质点第二次通过B 点。

该质点运动的周期和振幅分别为A ．3 s， B ．3 s，C ．4 s， D ．4 s，cmO5．如图，水流由与水平方向成α角的柱形水管流入水平水槽，并由水槽左右两端流出，则从右端流出的水量与从左端流出的水量的比值可能为A ．212sin α+B ．212cos α+C ．212tan α+D ．212cot α+6．如图，带电质点1P 固定在光滑的水平绝缘桌面上，在桌面上距1P 一定距离有另一带电质点2P ，2P 在桌面上运动。

某一时刻质点2P 的速度沿垂直于12P P 连线的方向，则A ．若1P 、2P 带同种电荷，以后2P 一定做速度变大的曲线运动B ．若1P 、2P 带同种电荷，以后2P 一定做加速度变大的曲线运动C ．若1P 、2P 带异种电荷，以后2P 的速度大小和加速度大小可能都不变D ．若1P 、2P 带异种电荷，以后2P 可能做加速度、速度都变小的曲线运动7．如图，空间某区域内存在着匀强磁场，磁场的上下边界水平，方向与竖直平面（纸面）垂直；两个由完全相同的导线制成的刚性线框a 和b ，其形状分别是周长为4l 的正方形和周长为6l 的矩形。

2011年雅礼中学自主招生考试语文试题及答案注意事项：1、本试卷满分110分，考试时间90分钟。

2、所有题目必须在答题卷上作答，否则，不予记分。

一、积累与运用。

(32分)1、阅读下面一段文字，根据拼音写汉字。

（4分）世博会是全世界文明的盛会，也是青年志愿者的盛会。

北京奥运会yùn（）育了‚鸟巢一代‛，现在又有了一个新的名词——‚海宝一代‛。

志愿者队伍被看作上海世博chóu( )办的‚一支最重要的工作力量‛。

现在，上海世博的志愿者正在成为世博会‚城市，让生活更美好‛主题的生动演yì( )者。

‚志愿者精神‛，正在四川、北京、青海、上海接力传递，充分展示出中国年轻一代勇于负责、敢于担当的精神，也标志着中国精神文明在拥抱世界的过程中xǐng( )目的升华。

yùn（孕）育 chóu( 筹 )办演yì( 绎 ) xǐng(醒 )目2、选出下列词语书写完全正确的一项（ A ）。

（3分）A．寒暄刻不容缓儒雅察言观色B．伦理无精打采急燥（躁）励精图治C．跌宕巧妙绝仑（伦）殉私陈规陋习D．恻隐闻名遐迩云霄涣然一新（焕）3、下列各句中，没有语病的一句是（ D ）。

（3分）A．调查显示，我国有近百分之九十左右的青少年认为“诚实守信”、“助人为乐”是优秀的传统美德。

B．能否取得好的成绩，关键就在于要勇于克服困难，充满自信。

C．小刘到赵教授家请他将自己要发表的论文再重新校对一遍。

D．我们要引导青少年用美的眼光去观察世界，用美的心灵去感受世界。

4、请用一句话概括下面这则新闻的主要内容。

（不超过18个字）（4分）中国气象局最近正式启动第三次青藏高原大气科学试验工作，联合了国内外科研机构，全面开展青藏高原气象观测、分析和研究的活动，为提高我国暴雨、洪涝、干旱等灾害性天气气候的预报预测水平提供科技支撑，为积极应对气候变化奠定重要基础，进一步提高我国在国际大气科学界的影响力。

山东省2011年高中学业水平考试数学试题一、选择题：本大题共15小题，每题3分，共45分.在每小题给出的四个选项中，只有一个是符合题目要求的. 1．集合{0},{|11}M N x Z x ==∈-<<,则M N 等于 A ．{-1,1} B ．{-1} C ．{1} D ．{0} 2．下列函数中，其图象过点（0,1）的是 A ．2xy = B 。

2log y x = C 。

13y x=D.sin y x =3．下列说法正确的是A ．三点确定一个平面B ．两条直线确定一个平面C ．过一条直线的平面有无数多个D ．两个相交平面的交线是一条线段4．已知向量(2,1),(3,4)a b ==-，则a b - 的坐标为A ．（-5,3）B ．（-1,5）C ．（5,-3）D ．.（1，-5） 5．0cos75cos15sin 75sin15+的值为A ．0B ．12C D ．16．已知过点(2,)A m -和(,4)B m 的直线与直线210x y +-=平行，则m 的值为A. -8B. 0C. 2D. 107．高三某班共有学生56人，其中女生24人，现用分层抽样的方法，选取14人参加一项活动，则应选取女生 A. 8人 B. 7 C. 6人 D. 5人8．已知一个半球的俯视图是一个半径为4的圆，则它的主（正）视图的面积是A. 2πB. 4πC. 8πD.16π 9．函数2()(1)(310)f x x x x =-+-的零点个数是 A. 1 B. 2 C. 3 D. 4 10．已知函数()sin()()2f x x x R π=-∈，下面结论正确的是A. 函数()f x 的最小正周期为2πB. 函数()f x 在区间[0,]2π上是增函数C. 函数()f x 是奇函数D. 函数()f x 的图象关于直线0x =对称 11．如图所示的程序框图，其输出的结果是 A. 1 B.32 C. 116 D. 251212．在ABC ∆中，已知()()3a b c b c a bc +++-=，则角A 等于 A. 030 B. 060 C. 0120 D. 015013．不等式组400x y x y +≤⎧⎪≥⎨≥⎪⎩表示的平面区域内横、纵坐标均为整数的点的个数是A.15B.14C. 10D. 914．已知变量,x y 有如下观察数据：则y 对x 的回归方程是0.83y x a =+，则其中a 的值为 A. 2.64 B .2.84 C. 3.95 D.4.3515．等比数列的前2项和为2，前4项和为10，则它的前6项和为A. 31B. 32C. 41D. 42 二、填空题：本大题共5题，每题4分，共20分.16．已知函数2()1,0f x x x =+<，若()10f x =，则x = 。