发生腹部切口疝的原因中,最主要的是()
A.腹壁肌肉被切断
B.缝线滑脱
C.缝合时强行拉拢创缘
D.切口过长
E.切口感染
参考答案:E
We hope you _____ a happy holiday in Hong Kong. [ ]
A. to have
B. having
C. had
D. will have
论述货位分配原则的内容。