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[79×(1/3+0.72)-0.3]×(1/10-0.1)
人气:299 ℃ 时间:2020-06-26 19:39:40
解答
[79×(1/3+0.72)-0.3]×(1/10-0.1)
=[79x(1/3+18/25)-0.3]x(0.1-0.1)
=[79x129/75-0.3]x0
=0
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