单项选择题

Medical facilities are being upgraded.

A. renewed
B. repaired
C. improved
D. increased
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单项选择题
You have to be patient if you want to sustain your position.
A. maintain
B. establish
C. acquire
D. support
单项选择题
The index is the government's chief gauge of future economic activity.
A. measure
B. opinion
C. evaluation
D. decision
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