下列哪项不是牛膝的禁忌证（）
A.孕妇
B.滑精
C.痛经
D.便溏
E.崩漏
参考答案：C
该患者手术后至少多长时间患肢不能负重
A．1个月
B．2个月
C．3个月
D．4个月
E．5个月
My sister is 11 this year. She is _____ look after herself.[ ]
A. enough young
B. enough old
C. enough old to
D. old enough to
