单项选择题

Scientific research results can now be quickly ______ to factory production.

A．used
B．applied
C．tried
D．practiced
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单项选择题
The multinational corporation was making a take-over ______ for a property company.
A．application
B．bid
C．proposal
D．suggestion
单项选择题
______ for the fact that she broke her leg, she might have passed the exam.
A．Had it not been
B．Hadn't it been
C．Was it not
D．Were it not
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