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单项选择题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、40.968,38.685

C、44.251,41.968

D、42.251,39.968

  • C
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