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(0.4+2.2×0.5﹚×0.6递等式计算
人气:304 ℃ 时间:2020-03-28 06:07:47
解答
(0.4+2.2×0.5﹚×0.6
=(0.4+1.1﹚×0.6
=1.5×0.6
=0.9
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