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水位,负数,题目
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题目如果水位升高3m时水位变化记作+3m,那么水位下降3m时水位变化记作 ( )A.-3mB.3 mC.6 mD.-6 m可圈可点用户2021-02-19 08:40优质解答答案:A解析:根据正负数的概念即可得到水位下降3m时水位变化记作-
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题目
如果水位升高3m时水位变化记作+3m,那么水位下降3m时水位变化记作 ( )
A.-3m
B.3 m
C.6 m
D.-6 m
可圈可点用户
2021-02-19 08:40
优质解答
A
根据正负数的概念即可得到水位下降3m时水位变化记作-3m
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