相关考题
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单项选择题
It is very important for every sailor （）the characteristics of the ropes so that they can be for right jobs.
A.knowing
B.know
C.to know
D.knew -
单项选择题
This windlass （）now.
A. has repaired
B. is under repair
C. was repaired
D. had repaired -
单项选择题
The blocks and gooseneck of the jumbo need （）.
A. dismantling and inspecting
B. dismantled and inspected
C. to dismantle and inspect
D. dismantle and inspect
