单项选择题

Hearing problems may be alleviated by changes in diet and exercise habits.

A. removed
B. cured
C. worsened
D. relieved
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单项选择题
These are their motives for doing it.
A. reasons
B. excuses
C. answers
D. plans
单项选择题
In Britain and many other countries appraisal is now a tool of management.
A. evaluation
B. production
C. efficiency
D. publicity
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