单项选择题
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
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（）.
单项选择题 A racetrack turn would be better than a Williamson turn in recovering a man overboard if（）.
单项选择题 A person with diabetes has received a minor leg injured. The symptoms of the onset of a diabetic coma include（）.