流行病学的作用不是用于A．研究统计资料的分析 B．研究疾病的流行因素 C．研究疾病预

阅读理解。

     In foreign (外国的) countries, some people do not like the number 13. They don't think 13 is a lucky

 number. For example, they don't like to live on the thirtieth floor. 

     My friend Jack has got the same idea. He doesn't like the number 13, either.

     One day he asked some friends to dinner. When all of his friends arrived, he asked them to sit around

  the table. He began to count (数) the people in his mind when they were having the delicious food.

 Suddenly (突然) he cried out. "Oh, there are thirteen people here!" Everybody's face turned white except

 (除……以外) Mr. Brown. He said slowly with a smile on his face, "Don't worry, my dear friends! We

 have fourteen people here. My wife Mrs. Brown will have a baby in a few weeks. She is in the family way

 (怀孕) now."

     All of them became happy again.

     "Congratulations!" they said to Mr. and Mrs. Brown. They enjoyed the nice food and had a good time

 that evening.

1. Some people in don't like number 13 because they think number 13 _____.

    A. is a lucky number            

    B. is an unlucky number

    C. can bring them happy          

    D. can make them ill

2. One day Jack asked _____ persons to his home to have dinner. 

    A. 11        

    B. 12          

    C. 13          

    D. 14

3. Suddenly Jack cried out because he found there were _____ people there. 

    A. 11          

    B. 12      

    C. 13              

    D. 14

4. Mrs. Brown will be _____ ina few weeks. 

    A. a mother               

    B. the thirteenth person

    C. Mr. Brown's wife        

    D. Jack's friend

5. Which of the following is NOT right?

    A. When Jack cried out, everyone was afraid(害怕)except Mr. Brown.

    B. In fact, there were fourteen people in Jack's home.

    C. All of them became happy again when they heard Mr. Brown's words.

    D. Many people don't like the number 13, but me friend Jack does.

临床医学研究中的知情同意原则（）

A.欺骗、威胁、利诱进行医学临床实验违反了道德和法律

B.负担和受益要公正分配

C.受试者与研究者之间应保密

D.死亡家属有权获得赔偿

E.需获得伦理专家委员会（或主管部门）的批准

依地酸二钠钙

A．小剂量亚甲蓝(美蓝)
B．大剂量亚甲蓝(美蓝)
C．依地酸二钠钙
D．二硫基丙醇
E．亚硝酸盐一硫代硫酸钠

在进行建设工程或者在农业生产中，任何单位或者个人发现文物，应当保护现场，立即报告（）部门。

A、上级领导； 

B、文物行政； 

C、国务院

检查凝血功能的化验是

A．出血时间
B．纤维蛋白原定量
C．血块收缩试验
D．3P试验
E．血小板计数