单项选择题

The chairman of the company said that new techniques had______ improved their production efficiency.

A．violently
B．severely
C．extremely
D．radically
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单项选择题
We should make a clear______ between competent and proficient for the purposes of our discussion.
A．separation
B．division
C．distinction
D．difference
单项选择题
In order to raise money, Aunt Nicola had to______ with some of her most treasured possessions.
A．divide
B．separate
C．part
D．abandon
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