患者脾胃虚寒便血。主方为
A．连理汤B．驻车丸C．黄土汤D．归脾汤E．补中益气汤
参考答案：C
我们通常用到的cin ＞ ＞ ，是属于【 】输入。
— did your sister work in that hospital?
—For two years,then she moved to the south.[ ]
A. When
B. How long
C. How soon
D. How often
