单项选择题

Investment in new product development is an essential ______ of corporate success.

A．component
B．ingredient
C．constituent
D．element
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单项选择题
The appearance of the thief' s picture in all papers led to his ______.
A．panic
B．terror
C．apprehension
D．comprehension
单项选择题
It is very strange but I had an ______ that the plane would crash.
A．inspiration
B．intuition
C．imitation
D．incentive
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