单项选择题

It is a myth that the law permits the Food and Drug Administration to ignore requirements for ______ drugs while brand-name drugs still must meet these rigid tests.

A．specific
B．generic
C．intricate
D．acrid
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单项选择题
The possibility that the explosion was caused by sabotage cannot be ______.
A．broken out
B．cancelled out
C．ruled out
D．wiped out
单项选择题
He did not relish appealing amongst his friends and ______ of their criticism or censure.
A．running short
B．running out
C．running the gauntlet
D．running ahead
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