单项选择题

A well-written composition ______ good choice of words and clear organization.

A．calls on
B．calls for
C．calls up
D．calls off
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单项选择题
In Britain today women ______ 44% of the workforce, and nearly half the mothers with children are in paid work.
A．build up
B．stand for
C．make up
D．conform to
单项选择题
Equipment not ______ official safety standards has all been removed from the workshop.
A．conforming to
B．consistent with
C．predominant over
D．providing for
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