题目内容

31. About a quarter of American adults say that they ________a book in whole in the past year.

A. will not read
B. do not read
C. would not read
D. have not read

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32. We should be ___________of cultural differences while doing foreign trade .

A. aware
B. active
C. friendly
D. hopeful

33. This study has found some key factors _______employees' stress in their work.

A. turning down
B. leading to
C. taking off
D. carrying out

34. The company can now focus its attention __________developing its latest car model.

A. in
B. with
C. at
D. on

下述哪种因子不存在于血浆中

A. V因子
B. Ⅲ因子
C. X因子
D. Ⅻ因子
E. Ⅶ因子

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