拆模作业应按()的原则进行。
A.先支先拆
B.后支后拆
C.先支后拆
D.同时拆除
参考答案:C
This is not an economical way to get more water; ____, it is very expensive.
A.on the contrary
B.on the other hand
C.on the whole
D.on earth
Sea way Bill系由()签发的。
A.堆场
B.货运站
C.承运人
D.无船承运人