单项选择题

To turn over a liferaft that is floating upside down，you should pull on the（）.

A.canopy
B.manropes
C.sea painter
D.righting lines

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单项选择题

This illustration shows the correct method of securing a（）.

A.man-rope
B.frapping line
C.sea painter
D.lifeline

单项选择题

The Vessel can be（）in lawful trades between ports，anchorages or places where it is customary for similar size vessels to lie safely aground.

A.Permalloyed
B.Destroyed
C.Deployed
D.employed

单项选择题

The use of sinking and dispersing chemical agents for removal of surface oil is（）.

A.the most common method used in the United States
B.too expensive for common use
C.generally safe to sea life
D.authorized only with prior approval of the Federal On-Scene Coordinator