“微信扫一扫”进入题库练习及模拟考试
水准测量中,A为后视点,B为前视点,A的高程HA为357.42m,后视读数A为1.74m,前视读数B为1.38m,则B的高程HB为( )
A.360.54m
B.357.06m
C.-354.30m
D.357.78m
参考答案:D
进入考试题库