GPS辅助光束法区域平差中,构架航线的作用在于取代()两排高程地面控制点。
A.区域两端
B.区域中央
C.区域四角
D.区域四周
参考答案:A
We heard that many lives were lost in the earthquake in Japan.
A.[ i ]
B.[ai ]
C.[ ei ]
D.[ e ]
蒲松龄在《婴宁》中,将婴宁喻指为( )
A.合欢
B.忘忧
C.笑矣乎
D.解语花