水鼓的特征有
A．腹部胀满膨大
B．状如蛙腹
C．嗳气则舒
D．常伴下肢浮肿
E．按之如囊裹水
参考答案：A,B,D,E
The old man needs at most five hours' sleep a night, but he _______ for over seven hours tonight. [ ]
A. has gone to bed
B. has slept
C. has gone to sleep
D. has fallen asleep
关于髋关节脱位的并发症，错误的是（）
A.坐骨神经损伤
B.缺血坏死
C.退行性关节炎
D.筋膜间室综合征
E.髋臼骨折
