题目内容
(请给出正确答案)
[主观题]
视距测量时,经纬仪置于高程为162.382m的A点,仪器高为1.40m,上、中、下三丝读数分别为1.019m、1.400m
和1.781m,求得竖直角a=3.12710",则AB的水平距离和B点的高程分别为: A.75.962m,158.131m B.75.962m,166.633m C.76.081m,158.125m D.76.081m,166.633m
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A.75.962m,158.131m
B.75.962m,166.633m
C.76.081m,158.125m
D.76.081m,166.639m
A.1920.083mm;
B.1916.577mm;
C.1920.086mm;
D.1916.573mm。
A.1.870m,16.014m
B.2.882m,16.014m
C.1.870m,15.546m
D.2.882m,17.026m
A.1.870m,16.014m
B.2.882m,16.014m
C.1.870m,15.546m
D.2.882m,17.026m
A.47.777m
B.50.009m
C.50.247m
D.52.479m
A.HB=HA-a-b
B.HB=HA+a+b
C.HB=HA+a-b
D.HB=HA-a+b
A.60.773
B.63.463
C.62.118