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【单选题】

A、To measure amounts of rainfall,

B.To check the accuracy of scales.

C.To observe changes in the atmosphere.

D.To calculate the density of other metals.

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根据网考网移动考试中心的统计,该试题:

42%的考友选择了A选项

55%的考友选择了B选项

2%的考友选择了C选项

1%的考友选择了D选项

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