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 must try to wipe out the memory of these horribleevents.
A．strange
B．terrible
C．unusual
D．unfair
单项选择题
The train came to an abruptstop.
A．uncertain
B．slow
C．unexpected
D．smooth
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