单项选择题

The drugs must _________ in every way to the standards established by the federal government.

A．confine
B．convene
C．conform
D．comply
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单项选择题
Sophisticated, intelligent people are not greatly concerned with such qualities as good looks.
A．superficial
B．vague
C．intelligible
D．virtual
单项选择题
Of all the senses that help a small baby to distinguish his mother, sight is _________.
A．permanent
B．prevalent
C．predominant
D．preliminary
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