题目内容
(请给出正确答案)
[主观题]
钢尺丈量AB、CD两段距离,AB往测为163.204m,返测为 163.248 m,CD往测为235.712 m,返测为235.776m,试求AB及CD的长度? AB及CD哪段精度高?
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(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
A.1/3000.1
B.0.1/300.1
C.1/3000.6
D.0.1/300.06
A.B两点,AB往测长为300.06m,返测长为299.96m,则相对误差为()。
B.1/3000.1
C.0.1/300.1
D.1/3000.6
E.0.1/300.06