单项选择题
（）will the discharging operations take?
A.How long
B.How length
C.How many times
D.How many shift
点击查看答案&解析
相关考题
-
单项选择题
（）your present speed?
A.How is
B.How are
C.What is
D.What are -
单项选择题
A bad separation makes the cargo（）at its destination.
A.easier to discharge
B.more difficult to discharge
C.easierto load
D.more difficult to load -
单项选择题
A number of bags are worn-out（）a certain extent.
A.at
B.in
C.on
D.to
