题目内容
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[不定项选择题]
M点的高程为43.251m,测得后视读数为a=1.000m,前视读数为b=2.283m,则视线高Hi和待测点B的高程分别为()m。
A.45.534,43.251
B.44.251,41.968
C.42.251,39.968
D.40.968,38.685
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A.45.534,43.251
B.44.251,41.968
C.42.251,39.968
D.40.968,38.685
A.45.534,43.251
B.40.968,38.685
C.44.251,41.968
D.42.251,39
A.45.534,43.251
B.40.968,38.685
C.44.251,41.968
D.42.251,39
A.HB=HA-a-b
B.HB=HA+a+b
C.HB=HA+a-b
D.HB=HA-a+b
A.HB=HA-a-b
B.HB=HA+a+b
C.HB=HA+a-b
D.HB=HA-a+b
A.11.000
B.12.000
C.12.500
D.13
A.101.75m、101.45
B.99.9m、101.45
C.100.05m、99.90
D.96.50m、96.85
A点高程40.150m,B点高程41.220m;施工单位从引入场内M点高程:从A点引测,前视读数1.10m,后视读数1.40m;现从B点校核M点高程,后视读数1.10m,前视读数应为()m。
A.1.25
B.1.37
C.1.49
D.1.87
A.2.001m
B.0.923 m
C.0.539 m
D.1.743 m