下列中能清肝明目的药是
A.金钱草
B.海金沙
C.滑石
D.车前子
参考答案：D
The book was written in 1946, ___ ___ the education system has witnessed great charges.
A．when
B．during which
C．since then
D．since when
客人已结帐离开房间，饭店简称（）。
A、临时退房
B、走客房
C、空房
D、外出房
