单项选择题

The ship's generator broke down, and the pumps had to be operated （） instead of mechanically.

A．manually
B．artificially
C．automatically
D．synthetically

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单项选择题
The boy spent as much time watching TV as he （） studying.

A．does
B．had
C．was
D．did
单项选择题
The author of the report is well（）with the problems in the hospital because he has been working there for many years.

A．informed
B．acquainted
C．enlightened
D．acknowledged
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