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[主观题]
用钢尺丈量某段距离,往测为112.314m,返测为112.329m,则相对误差为()。
A.1/3286
B.1/7488
C.1/5268
D.1/7288
查看答案
![](https://static.youtibao.com/asksite/comm/h5/images/solist_ts.png)
A.1/3286
B.1/7488
C.1/5268
D.1/7288
用钢尺丈量一条直线,往测丈量的长度为217.30m,返测为217.38m,今规定其相对误差不应大于1/2000,试问:
(1)此测量成果是否满足精度要求?
(2)按此规定,若丈量100m,往返丈量最大可允许相差多少毫米?
(1)DAB的值为()
A.221.782m
B.221.756m
C.221.730m
D.0.026m
(2)DCD的值为()
A.446.680m
B.446.730m
C.0.050m
D.446.630m
(3)KAB的值为()
A.2.000
B.1/4264
C.1/4266
D.1/4265
(4)KCD的值为()
A.1/4468
B.2.000
C.1/4467
D.1/4466