问题
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0.001,0.002,0.006,0.024,()。A.0.045 B. 0.12 C. 0.038 D.0.24
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0.001,0.002,0.006,0.024, ()。 A.0.038 B.0.045C.0.12D.0.24
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设数据x1,x2,x3的绝对误差为0.002,那么x1-x2+x3的绝对误差约为0.006。()
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自动喷水系统系统管道横向安装宜设_______ 的坡度 且应坡向排水管。A.0.001~0.002
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(2018年)某地下水水样挥发性酚类(以苯酚计)检测浓度为0.001mg/L 苯并芘浓度0.002
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某地下水水样挥发性酚类(以苯酚计)检测浓度为0.001mg/L 苯并芘浓度0.002μg/L 根据