单项选择题

He had a clear ______ of what was wrong with the machine and fixed it in a short time.

A．debris
B．deficiency
C．perception
D．persecution
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单项选择题
It turned out that he had ______ the whole story just to cheat his friends.
A．dissipated
B．diverged
C．detached
D．fabricated
单项选择题
Written at least 100 years ago, the handwriting faded and certainly became ______.
A．infinite
B．illegible
C．infectious
D．immune
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