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问题
填空题
粮食产量增产11%，记作+11%，则减产6%应记作______．
答案
∵增产11%，记作+11%，
∴减产6%应记作-6%．
故答案为：-6%．
选择题
These films ______ until tomorrow morning.
A. can't develop
B. aren't developing
C. won't be developed
D. won't develop
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名词解释
不全流产
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