单项选择题

The editors said they must report to the world how Beijing has ______ pollution and improved the quality of the environment.

A．cut up
B．cut off
C．cut down
D．cut out
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单项选择题
______ the passage of light, many new plastics are processed using technologies rivaling those used in the manufacture of computer chips.
A．For the better of
B．Permitting better
C．To better permit
D．It is better for
单项选择题
Recognizing the shortage of time available to spend with their children, working mothers sometimes take ______ in the concept of quality time .
A．refuge
B．pride
C．place
D．action
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