单项选择题

装卸货之前，打开舱盖。（）

A. After loading and discharging, hatch covers will be opened.
B. After loading and discharging, hatch covers will be closed.
C. Before loading and discharging, hatch covers will be opened.
D. Before loading and discharging, hatch covers will be closed.

点击查看答案&解析

上一题目录下一题

相关考题

单项选择题
The running wheel runs along （）on top of the hatch coaming.

A. the guide rail
B. the guide rope
C. the side coaming
D. the guide roller
单项选择题
Could you show me （）to open the hatch covers?

A.why
B.when
C.how
D.what
单项选择题
If the hatch cover does not move, （）should be checked.

A. the open valve
B. the stop valve
C. the steam valve
D. the close valve