按照企业物流的垂直结构,属于作业层的内容有()。
A.发货与进货运输
B.装卸搬运
C.用料管理
D.系统控制
E.流通加工
参考答案:A, B, E
妇科切诊包括 ()
A.切脉
B.按肌肤
C.扪腹部
D.摸肝脾
E.叩心肺
You _______ to the meeting this afternoon if you have something important to do.[ ]
A. needn't to come
B. don't need come
C. don't need coming
D. needn't come