女儿墙是应用在（）的墙体。
A.窗下的
B.窗上的
C.屋顶的
D.地下的
参考答案：C
The Smiths________through millions of ups and downs since they moved to Sydney. [ ]
A. have gone
B. had gone
C. went
D. has gone
可致左心室后负荷过重的疾病是
A．二尖瓣关闭不全B．主动脉瓣关闭不全C．二尖瓣狭窄D．主动脉瓣狭窄E．甲状腺功能亢进
