提单按货物是否装船可分为()提单和()提单。
A.预借;倒签
B.收货待运;已装船
C.码头;船上
D.空白;指示
参考答案:B
Please don't get the blackboard _____. I haven't finished taking notes.[ ]
A. cleaning
B. cleans
C. to clean
D. cleaned
骨瘤的好发部位()
A.四肢骨
B.脊椎骨
C.头面骨
D.颌骨
E.指(趾)骨