* * 直肠瘘的首要病因是()。
A.放疗后
B.手术损伤
C.难产处理不当
D.手术时,误伤输尿管
E.长期放置子宫托
参考答案:C
指挥人员()干涉起重机司机对手柄或旋钮的选择:
A、不能
B、可以
— You had better the book to others.
— No, I won't. [ ]
A. don't lend
B. not lend
C. don't borrow
D. not borrow