单项选择题

In my opinion, you can widen the ________ of these improvements through your active participation.

A．dimension
B．volume
C．magnitude
D．scope
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单项选择题
Hospital doctors don' t go out very often as their work ______ all their time.
A．takes away
B．takes in
C．takes over
D．takes up
单项选择题
Because the company was doing more business, it was necessary to ______ the factory.
A．extend
B．increase
C．rise
D．lookers
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