单项选择题

Medical facilities are being upgraded.

A．expanded
B．repaired
C．improved
D．transferred
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单项选择题
In order to improve our standard of living, we have to accelerate production.
A．involve
B．decrease
C．speed up
D．give up
单项选择题
Mary looked pale and weary.
A．worried
B．ugly
C．silly
D．exhausted
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