当边坡稳定性差，但拱脚承载力较好，能保证拱圈稳定时，可采用( )。
A．先墙后拱法
B．拱墙整体灌注法
C．先拱后墙法
D．墙拱交替法
参考答案：C
She has ______ that doctor for three months.
A．married to
B．got married to
C．been married with
D．been married to
简述元朝法律的基本特点。
