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(-26.54)-18.46+(604)+6.4
人气:167 ℃ 时间:2020-05-04 00:10:19
解答
(-26.54)-18.46+(604)+6.4
=-(26.54+18.46)+604+6+0.4
=-45+610+0.4
=565+0.4
=565.4
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