单项选择题

It is desirable that students should acquire some knowledge of the writers whose _______ are placed before them for study.

A．materials
B．manufactures
C．products
D．productions
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单项选择题
We have a high regard for Mr. Smith because he always _______ his principles.
A．stands up to
B．lives up to
C．puts up for
D．keeps up with
单项选择题
The New York Times has ________ in France, Germany, and other countries.
A．reporters
B．journalists
C．announcers
D．correspondents
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