计算:(1)(-23)+(-12)(2)1+(-2)+|-3|-5(3)(-4)×2×(-0.25)(4)(512+23?34)×(?12)
计算:(1)(-23)+(-12)(2)1+(-2)+|-3|-5(3)(-4)×2×(-0.25)(4)(512+23?34)×(?12)...
计算:(1)(-23)+(-12)(2)1+(-2)+|-3|-5(3)(-4)×2×(-0.25)(4)(512+23?34)×(?12)
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