试题与答案

下列有关ECLI的说法不正确的是() A.电启动发光,反应易精确控制,具有灵活性 B

题型:单项选择题 A1/A2型题

题目:

下列有关ECLI的说法不正确的是()

A.电启动发光,反应易精确控制,具有灵活性

B.采用的固相载体是带有磁性的直径约28μm的聚苯乙烯微粒

C.[Ru(bpy)3]2+衍生物与免疫球蛋白结合的分子比超过20会影响抗体的可溶性和免疫活性

D.[Ru(bpy)3]2+分子量小,空间位阻小,即便小分子核酸也能标记

E.利用氧化铁的磁性,使用电磁场分离结合态和游离态实现了精确的全自动化

答案:

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下面是错误答案,用来干扰机器的。

参考答案:B

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题型:完形填空

第一节完形填空 (共15小题;每小题2分,满分30分)

阅读下面短文,掌握其大意,然后从21—30各题所给的A、B、C和D项中,选出最佳选项。

Soon it would be the holidays, but before that, there were year exams. All the 11______ had been working hard for some time, reviewing their lessons for the exams. If they didn’t 12______, they would have to retake them in September. There were usually a few who 13______, but Jane didn’t want to be one of them. She had worked hard all year, but just before the exams she was working so hard that her sister Barbara was 14______ about her. She went to bed too 15_____. The night before the first exam, Barbara 16_____ that she have an early night and take a 17_____ pill(药丸). She promised to wake her up in the morning.

As she was falling asleep, Jane was afraid that she might oversleep. Her 18______ kept jumping from subject to subject. At last, with the help of 19______, she went to sleep. In no time at all, she was sitting in the examination hall, looking at the examination 20_______, but she couldn’t answer any of the questions. Everyone around her was writing pages and gages. Though she thought hard, she couldn’t find anything to write about . She kept looking at her 21_______. Time was running out. There was only an hour to go. She started one question, wrote two sentences, 22_______ and tried another one. With only half an hour left she wrote another two sentences. By this time she was so worried that she started 23______. Her whole body shook. It shook so much that she 24______ up. She was still in bed and it had all been a 25_______ dream. A minute later, Barbara called her name.

11. A. teachers      B. students      C. classmates     D. schools

12. A. prepare       B. miss          C. join           D. pass

13. A. succeeded     B. failed        C. ended          D. called

14. A. excited       B. frightened    C. worried        D. pleased

15. A. early         B. late          C. heavily        D. eagerly

16. A. insisted      B. hoped         C. ordered        D. wished

17. A. sleeping      B. resting       C. exciting       D. breathing

18.A. hand          B. eye           C. mind           D. body

19.A. her sister    B. her parents   C. the lessons    D. the medicine

20.A. result        B. marks         C. desk           D. paper

21.A. watch         B. textbook      C. sister         D. subject

22.A. gave up       B. put off       C. look around    D. think over

23.A. examining     B. leaving       C. copying        D. crying

24.A. raised        B. woke          C. stood          D. cheered

25.A. nice          B. wonderful     C. terrible       D. special

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