单项选择题

It is a myth that the law permits the Food and Drug Administration to ignore re quirements for().drugs while brand-name drugs still must meet these rigid tests.

A. specific
B. generic
C. intricate
D. acrid

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单项选择题
DaMs Hayes raised the essential paradox and asked how people could have fought so hard against environmental degradation______themselves now on the verge of losing the war,
A. only found



B. finding only
C. only to find



D. have only found
单项选择题
Two-thirds of the U.S. basketball players are black, and the number would be greater______.the continuing practice of picking white bench warmers for the sake of bal ance.
A. was it not because of


B. had it not been for
C. were it not for



D. would it not have been for
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