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(-3.12)*35.2+6.28*(-23.2)-1.57*36.8
人气:242 ℃ 时间:2020-03-20 12:16:36
解答
一楼不对,题目中没有-3.14
(-3.12)*35.2+6.28*(-23.2)-1.57*36.8
=-109.824-145.696-57.776
=-313.296
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