货物运输作业计划执行的随机因素有（）
A.调度控制不力
B.运输路线出现障碍
C.装卸时间超过额定时间
D.驾驶人员出问题
参考答案：A, B, C, D
片剂生产中可用来做崩解剂的高分子材料有
A．CMS-Na
B．EC
C．CCNa
D．CAP
E．PPP
–Excuse me. _______
–Just go straight and turn left. It’s on your right.
A．Can I help you?
B．Where is the nearest station?
C．What’s the matter?
D．What would you like to eat?
