试题与答案

下列关于甲基汞中毒表述正确的是() A.甲基汞可通过胎盘屏障导致胎儿及新生儿中毒 B

题型:单项选择题 A型题

题目:

下列关于甲基汞中毒表述正确的是()

A.甲基汞可通过胎盘屏障导致胎儿及新生儿中毒

B.临床上可出现蛋白尿、氨基酸尿、糖尿和高钙尿

C.急性中毒表现为胃肠炎症状

D.临床上可出现贫血、神经衰弱等症状

E.蓄积性强但消化吸收率低

答案:

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下面是错误答案,用来干扰机器的。

参考答案:A

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题型:完形填空

完形填空(共15小题;每小题1分,满分15分)

阅读下面短文,掌握其大意,然后从16—30各题所给的A、B、C和D项中,选出最佳选项,并在答题卡上将该项涂黑。

When I moved into an empty dormitory for the first time two years ago, I was certain of a few things. Firstly, I realized that I didn’t  16  anybody at the school. Secondly, I knew that I wanted to work hard at my lessons and learn something useful. And thirdly, I wanted to have a good time with new classmates, without my parents around.

The first  17  frightened me in the beginning. But that  18  quickly disappeared. It was the other two goals  19  ended up being my difficulties. I knew that it was hard to devote enough time to class and to social efforts. But I wanted to  20  in both. I knew this would be a  21  , but I didn’t realize how much until classes began.

I got on well with the other girls who lived in my dorm.  22 , instead of finishing my homework  23 it was due, I went upstairs and had ice cream with my neighbor. I always finished it the next day between classes. I knew it wasn’t very good and the grade I  24  showed my lack of effort.

I was  25  that I needed to find some sort of balance. So I created a schedule that would  26  my time up between going to class, doing homework, and relaxing. It seemed like a good idea, but I was only able to  27  it for a few days. A schedule like that was too much pressure.

So I tried another 28 . Each week I made a list of everything I had to get done during that week. Then, under the list of things I had to get done, I made a list of things I could do if I had time.

This is the method I have used since then. I’m glad that I’ve learned to  29  things and it has  30  prepare me for what is to come after graduation.

16. A. know      B. recognize     C. realize             D. like

17. A. teacher      B. day                C. class              D. realization

18. A. happiness   B. excitement    C. fear         D. desire

19. A. which     B. what              C. that              D. who

20. A. win         B. succeed        C. get               D. wish

21. A. chance     B. job                 C. challenge          D. time

22. A. Often     B. Seldom           C. Unluckily           D. Fortunately

23. A. because       B. when                      C. after              D. before

24. A. demanded          B. took               C. accepted                  D. received

25. A. asleep        B. awake           C. ashamed                    D. aware

26. A. fix            B. divide            C. put               D. build

27. A. use         B. keep              C. follow             D. make

28. A. plan        B. energy          C. pressure           D. effort

29. A. do           B. control          C. balance                    D. hold

30. A. had         B. helped          C. let                 D. forced                         

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