试题与答案

乙型肝炎病毒的核衣壳具有() A.不完全双链DNA B.双链RNA C.包膜及血凝素

题型:单项选择题 B型题

题目:

乙型肝炎病毒的核衣壳具有()

A.不完全双链DNA

B.双链RNA

C.包膜及血凝素

D.复合对称衣壳

E.核衣壳

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

第一节 完形填空 (共10小题;每小题2分,满分20分)

阅读下面短文,掌握其大意,然后从21 ~ 30各题所给的四个选项(A、B、C和D)中,选出最佳选项,并在答题卡上将该项涂黑。

Mary seemed to be at a loss as to what is to live. One day the Spirit of Life came to her.

“What do you call the fullness of life?” the Spirit asked. “Oh, I can't tell you, if you don't know,” she said.“Many words are   21   to define it — love and sympathy are those in commonest   22  , but I’m not even sure that they are the   23   ones, and so few people really know what they   24  .”

“You were married,” said the Spirit, “yet you didn’t find the fullness of life in your marri- age?” 

“Oh, no,” Mary replied,“my marriage was a very incomplete affair.”  

“And yet you were fond of your   25  ?” 

“You’ve hit upon the   26   word; I was fond of him, yes, just as I was fond of my grandmother and the house I was born in. Oh, I was fond of him, and we were counted a very happy   27  . But I’ve sometimes thought that a woman’s nature is like a great house full of rooms: there is the hall, through which everyone passes, going in and out; the drawing-room, where one   28   formal visits; the sitting-room, where the family members come and go; but beyond that, far beyond, are other rooms, the handles of whose doors perhaps are never    29  ; no one knows the way to them, no one knows where they lead; and in the innermost room, the soul sits   30  and waits for a footstep that never comes.” 

21. A. meant B. supposed   C. required    D. expected

22. A. favor   B. need   C. practice     D. use

23. A. right    B. wrong       C. important D. necessary

24. A. refer    B. suggest      C. mean D. believe

25. A. husband      B. life    C. family       D. friend

26. A. same    B. exact C. actual        D. accurate

27. A. family        B. home        C. couple       D. pair

28. A. receives      B. accepts      C. expects      D. enjoys

29. A. touched       B. turned       C. reached     D. locked

30. A. still     B. down        C. straight      D. alone

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