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14.79*0.35-0.479*3.5(简便计算)
人气:322 ℃ 时间:2020-01-27 16:38:18
解答
14.79*0.35-0.479*3.5
=1.479*3.5-0.479*3.5
=(1.479-0.479)*3.5
=1*3.5
=3.5
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