单项选择题

She could fix the machine without referring to the instructions.

A. understanding
B. observing
C. consulting
D. obtaining
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单项选择题
The earth moves around the sun.
A. before
B. round
C. after
D. over
单项选择题
He made great show of reluctance, but finally accepted my offer.
A. emotion
B. unwillingness
C. anger
D. postpone
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