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目录医学考博英语历年真题 (2)2015年全国医学博士英语统一入学考试试卷 (2)2015年全国医学博士英语统一入学考试试题参考答案及解析 (17)2015年全国医学博士外语统一考试英语试卷录音原文 (29)本试题含阅读文章大意分析，听力含答案解析，有听力原文。
医学考博英语历年真题2015年全国医学博士英语统一入学考试试卷Part I Listening Comprehension(30%)Section ADirections:In this section you will hear fifteen short conversations between two speakers.At the end of each conversation,you will hear a question about what is said.The question will be read only once.After you hear the question,read the four choices marked A,B,C and D. Choose the best answer and mark the letter of your choice on the ANSWER SHEET.Listen to the following example.You will hear:Woman:I fell faint.Man:No wonder You haven't had a bite all day.Question:What's the matter with the woman?You will read:A.She is sick.B.She is bitten by an ant.C.She is hungry.D.She spilled her paint.Here C is the right answer.Sample AnswerA B●D Now let's begin with question number1.1. A.How to deal with his sleeping problem. B.The cause of his sleeping problem.C.What follows his insomnia.D.The severity of his medical problem.2. A.To take the medicine for a longer time. B.To discontinue the medication.C.To come to see her again.D.To switch to other medications.3. A.To tale it easy and continue to work. B.To take a sick leave.C.To keep away from work.D.To have a follow-up.4. A.Fullness in the stomach. B.Occasional stomachache.C.Stomach distention.D.Frequent belches.5. A.extremely severe. B.Not very severe.C.More severe than expected.D.It's hard to say.6. A.He has lost some weight. B.He has gained a lot.C.He needs to exercise more.D.He is still overweight.7. A.She is giving the man an injection. B.She is listening to the man's heart.C.She is feeling the man's pulse.D.She is helping the man stop shivering.8. A.In the gym. B.In the office.C.In the clinic.D.In the boat.9. A.Diarrhea. B.Vomiting.C.Nausea.D.A cold.10. A.She has developed allergies. B.She doesn't know what allergies are.C.She doesn't have any allergies.D.She has allergies treated already.11. A.Listen to music. B.Read magazines.C.Go play tennis.D.Stay in the house.12. A.She isn't feeling well. B.She is under pressure.C.She doesn't like the weatherD.She is feeling relieved.13. A.Michael's wife was ill B.Michael's daughter was ill.C.Michael's daughter gave birth to twins.D.Michael was hospitalized for a check-up.14. A.She is absent-minded. B.She is in high spirits.C.She is indifferent.D.She is compassionate.15. A.Ten years ago. B.Five years ago.C.Fifteen years ago.D.Several weeks ago.Section BDirections:In this section you will hear one conversation and two passages'after each of which,you will hear five questions.After each question,read the four possible answers marked A,B,C and D.Choose the best answer and mark the letter of your choice on the ANSWER SHEET.Dialogue16. A.A blood test. B.A gastroscopy.C.A chest X-ray exam.D.A barium X-ray test.17. A.To lose some weight. B.To take a few more tests.C.To sleep on three pillows.D.To eat smaller,lighter meals.18. A.Potato chips. B.Chicken. C.Cereal. D.fish.19. A.Ulcer B.Cancer C.Depression. D.Hernia.20. A.He will try the diet the doctor recommended.B.He will ask for a sick leave and relax at home.C.He will take the medicine the doctor prescribed.D.He will take a few more tests to rule out cancer.Passage One21. A.A new concept of diabetes.B.The definition of Type1and Type2diabetes.C.The new management of diabetics in the hospital.D.The new development of non-perishable insulin pills.22. A.Because it vaporizes easily.B.Because it becomes overactive easily.C.Because it is usually in injection form.D.Because it is not stable above40degrees Fahrenheit.23. A.The diabetics can be cured without taking synthetic insulin any longer.B.The findings provide insight into how insulin works.C.Insulin can be more stable than it is now.D.Insulin can be produced naturally.24. A.It is stable at room temperature for several years.B.It is administered directly into the bloodstream。
(答案必须写在考点提供的答题纸上)(答案必须写在考点提供的答题纸上)下面对于p型半导体形成的MIS结构，说法正确的是（）。
A．强反型时，表面的少子浓度会大于体内的多子浓度；(答案必须写在考点提供的答题纸上)(答案必须写在考点提供的答题纸上)第1页共3页科目代码：3823总分值：100科目名称：半导体物理一、选择题（40分每题2分）1.如果半导体中电子浓度等于空穴浓度，则该半导体以（）导电为主。
A.本征 B.受主 C.空穴 D.施主2.下列三种结构示意图属于多晶结构的是（）。
A B C 3.电子是带（）电的粒子。
A.正 B.负 C.零 D.准粒子4.当B 掺入Si 中时，它是（）杂质。
A.受主 B.深 C.浅 D.复合中心5.杂质半导体中的载流子输运过程的散射机构中，当温度升高时，电离杂质散射的概率和晶格振动声子的散射概率的变化分别是（）。
A.变大，变小B.变小，变大C.变小，变小D.变大，变大。
6.在热力学温度零度时，能量比F E小的量子态被电子占据的概率为（）。
A.大于1/2B.小于1/2C.等于1/2D.等于17.金属和半导体接触分为（）。
A.整流的肖特基接触和整流的欧姆接触B.整流的肖特基接触和非整流的欧姆接触C.非整流的肖特基接触和整流的欧姆接触D.非整流的肖特基接触和非整流的欧姆接触8.一块半导体材料，光照在材料中会产生非平衡载流子，若光照忽然停止t τ=后，其中非平衡载流子将衰减为原来的（）。
A.1/eB.1/2C.0D.2/e9.载流子在电场作用下的运动为（）。
A.漂移运动B.扩散运动C.热运动D.复合运动10.锗的晶格结构和能带结构分别是（）。
A.金刚石型和直接禁带型B.闪锌矿型和直接禁带型C.金刚石型和间接禁带型D.闪锌矿型和间接禁带型11.当半导体材料处于热平衡时，其电子浓度与空穴浓度的乘积为（）。
A.变化量B.常数C.杂质浓度和杂质类型D.禁带宽度和温度12.与绝缘体相比，半导体的价带电子激发到导带所需要的能量（）。
科目代码: 3809 科目名称：智能系统
1. 机器学习通常可分为指导性学习和非指导性学习，学习模型则可分为生成模型和
判别模型二类。
假定现在要完成以下的任务：
（a）函数拟合与插值；（b）聚类分析；（c）模式识别，
请简要解释以下学习模型各自属于生成模型还是判别模型，可以胜任哪种任务：（1）深度学习网络，(2)RBF网络，(3)Boltzmann机，（4）SOM网络。
(10%) 2. 如果将异或（XOR）问题推广为3输入的parity问题，要求输入和输出实现如下
真值表：
输入1 输入2 输入3 输出
0 0 0 0
0 0 1 1
0 1 0 1
0 1 1 0
1 0 0 1
1 0 1 0
1 1 0 0
1 1 1 1
请设计一个多层网络实现3-parity，并给出相应的学习算法。
(12%)
3. Hopfield网络是全相连的反馈型网络，可以用于实现“吸引子”联想记忆，如果
要使一个Hopfield网络同时记住“A”、“I”、“Y”三个字母（3x4点阵），试为其设计一个合理的结构，并给出学习算法和具体的网络权值。
(12%)
科目代码: 3809 科目名称：智能系统
科目代码: 3809 科目名称：智能系统
；
同时生成模型则以产生出能够“愚弄”判别模型使其以为真的数据为目标，即极。
