水手英语单项选择题每日一练(2020.04.21)

单项选择题
When the derrick is stopped, the guy must be （）(收好).
A.taken in
B.slacked off
C.adjusted
D.stowed
单项选择题
（）（降）the flag.
A.Hoist
B.Top
C.Lower
D.Bring
单项选择题
Right on the course.（）
A.在航向上
B.在方向上
C.在右边
D.在左边
单项选择题
During working time, everybody has to（）(注意)their’s own and other people’s safety.
A. take care of
B. take over
C. look after
D. look for
单项选择题
please lend me the （）.
A.bridge
B.torchlight
C.derrick
D.tool room