单项选择题

After our computer network ______ for the third time that day, we all went home.

A．fell
B．smashed
C．collided
D．crashed
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单项选择题
There's a very informative ______ on AIDS in today's paper.
A．news
B．show
C．feature
D．characteristic
单项选择题
Those jeans will ______ in the wash.
A．shrink
B．diminish
C．contract
D．reduce
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