单项选择题
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
A shipmate chokes suddenly，cannot speak，and starts to t...
单项选择题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
A right-handed propeller will cause the survival craft ...
单项选择题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 rescuer can most easily determine whether or not an a...
单项选择题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
