单项选择题

Nonwovens usually consist of at least two ______: the fiber and the binder.

A．opponents
B．components
C．complements
D．compliments
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单项选择题
She has decided to ______ some money every month to help three peasant girls in poverty-stricken areas.
A．lay down
B．lay aside
C．set up
D．stand up to
单项选择题
Very few experts ______ with completely new answers to the world's economic problems.
A．come to
B．come round
C．come up
D．come on
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