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假如A=0.000000000(9个)125,B=0.0000000000(10个)8
A=0.000000000125
B=0.00000000008
求A+B
A-B
A/B
A× B
人气:144 ℃ 时间:2020-05-12 02:57:25
解答
A+B =0.000000000(9个)205
A-B =0.0000000000(10个)45
A/B=1.5625
A× B=0.0000000000000000000000000000(20个)1
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