单项选择题

The telephone rates ______ by 20 percent last year.

A．raised
B．aroused
C．arose
D．rose
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单项选择题
The plan indicated that this objective was ______ in the following way.
A．attaining
B．to be attained
C．to attain
D．attained
单项选择题
Good lighting in factories leads to greater comfort, higher ______ and productivity, fewer mistakes and accidents.
A．achievement
B．proficiency
C．craft
D．efficiency
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