单项选择题

There have been different _________ in the media about the cause of the prince's death.

A．appendix
B．versions
C．clues
D．categories
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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
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
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