设A为后视点,B点为前视点,A点高程87.452m,当后视读数为1.267m,前视读数为1.663m,则B点高程HB=()m A: 88.719 B: 89.115 C: 87.848 D: 87.056
设A为后视点,B点为前视点,A点高程87.452m,当后视读数为1.267m,前视读数为1.663m,则B点高程HB=()m A: 88.719 B: 89.115 C: 87.848 D: 87.056
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