![](https://static.youtibao.com/asksite/comm/h5/images/m_q_title.png)
[单选题]
利用高程为44.926m的水准点,测设某建筑物室内地坪标高±0(高程为45.229m),当后视读数为1.225m时,则前视尺读数为__m时,尺底画线即为45.229m的高程标志()
A.1.225
B.0.303
C.-0.303
D.0
![](https://static.youtibao.com/asksite/comm/h5/images/m_q_a.png)
D、0
![](https://static.youtibao.com/asksite/comm/h5/images/solist_ts.png)
A.1.225
B.0.303
C.-0.303
D.0
D、0
A.2.001m
B.0.923 m
C.0.539 m
D.1.743 m
A.l.042
B.0.842
C.0.642
D.l.048
A.l.042
B.0.842
C.0.642
D.l.048
A.1.163m
B.0.127m
C.2.199m
D.1.036m