单项选择题
A.carotid artery in the neck
B.femoral artery in the groin
C.brachial artery in the arm
D.radial artery in the wrist
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（）.
单项选择题 A person who gets battery acid in an eye should IMMEDIATELY wash the eye with（）.