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（）.

A.boric acid solution
B.water
C.baking soda solution
D.ammonia

单项选择题A person may operate an air compressor in which of the following areas on board a tank barge?（）

A.Pumproom
B.Generator room
C.A space adjacent to a cargo tank
D.A space two meters from a cargo valve

单项选择题A person has suffered a laceration of the arm. Severe bleeding has been controlled by using a sterile dressing and direct pressure. What should you do next?（）

A.Apply a tourniquet to prevent the bleeding from restarting
B.Apply a pressure bandage over the dressing
C.Remove any small foreign matter and apply antiseptic
D.Administer fluids to assist the body in replacing the lost blood

单项选择题A person has fallen overboard and is being picked up with a lifeboat. If the person appears in danger of drowning，the lifeboat should make（）.

A.an approach from leeward
B.an approach from windward
C.the most direct approach
D.an approach across the wind

单项选择题A negative metacentric height（）.

A.will always cause a vessel to capsize
B.should always be immediately corrected
C.always results from off-center weights
D.All of the above are correct