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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1.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

2.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

3.單項(xiàng)選擇題A rescuer can most easily determine whether or not an adult victim has a pulse by checking the pulse at the（）.

A.carotid artery in the neck
B.femoral artery in the groin
C.brachial artery in the arm
D.radial artery in the wrist

4.單項(xiàng)選擇題A racetrack turn would be better than a Williamson turn in recovering a man overboard if（）.

A.the man has been missing for a period of time
B.the sea water is very cold and the man is visible
C.there is thick fog
D.the wind was from astern on the original course

5.單項(xiàng)選擇題A person with diabetes has received a minor leg injured. The symptoms of the onset of a diabetic coma include（）.

A.reduced appetite and thirst
B.sneezing and coughing
C.only a low grade fever
D.slurred speech and loss of coordination