单项选择题

In many areas, rapid development is the result of ______ in the research laboratory.

A．work to do
B．work done
C．doing work
D．work doing
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单项选择题
People tend to complain a lot about the ______ rising prices recently.
A．steeply
B．heavily
C．highly
D．most
单项选择题
The plan he put forward is carefully made ______.
A．as a whole
B．above all
C．on the whole
D．as mentioned
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