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(-3)*(-4)*(-5)+(-5)*(-7) (-0.1)**(-1)(-100)-0.01*(+1000)
人气:236 ℃ 时间:2020-09-15 10:08:09
解答
(-3)*(-4)*(-5)+(-5)*(-7)
=-5*(12-7)
=-5*5
=-25
(-0.1)*(-1)*(-100)-0.01*(+1000)
=-10-10
=-20
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