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往返测量AB和CD两段距离,分别量得AB长为850.56m,往返差为0.22m,CD长为160.40m,往返差为0.10m,问测量AB段比测量CD段的精度()。

单选题
2021-09-18 01:08
A、高
B、低
C、相同
D、无法比较
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正确答案
A

试题解析

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