单项选择题

We have no figures on the number of workers employed in the () stages of iron production.

A. various
B. variable
C. varied
D. variant

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单项选择题
All her hard work()in the end, and she finally passed the exam.

A. showed off
B. paid off
C. left off
D. kept off
单项选择题
The finance minister has not been so () since he raised taxes to an unbearable level.

A. famous
B. favorable
C. popular
D. preferable
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