單項(xiàng)選擇題

A towline should be fastened to（）.

A.the chocks at the bow of a towed vessel
B.the most forward，centermost point of a towed vessel such asa sturdy bow rail
C.the mast of a towed sailboat
D.a secure fitting near the bow of the towed vessel

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單項(xiàng)選擇題

A shipmate chokes suddenly，cannot speak，and starts to turn blue. You should（）.

A.perform the Heimlich maneuver
B.make the victim lie down with the feet elevated to get blood to the brain
C.immediately administer CPR
D.do nothing until the victim becomes unconscious

單項(xiàng)選擇題

A right-handed propeller will cause the survival craft to（）.

A.walk the stern to starboard in reverse
B.walk the stern to port in reverse
C.run faster than a left-handed propeller
D.right itself if capsized

A towline should be fastened to（）.

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A shipmate chokes suddenly，cannot speak，and starts to turn blue. You should（）.

A right-handed propeller will cause the survival craft to（）.

A shipmate chokes suddenly，cannot speak，and starts to turn blue. You should（）.