All inspected vessels on unrestricted ocean routes must have equipment on board for testing an individual’s（）.

A.Slightly elevate the head and feet
B.Keep the person awake
C.Keep the person lying down and at a comfortable temperature
D.Give the person a stimulant to increase blood flow

A.accumulation of carbon dioxide gas that chokes the battery
B.accumulation of explosive and toxic gases the battery can generate
C.mildew or dry rot in the battery box
D.battery failure including battery case meltdown caused by excessive heat

A.lay the crew member down with the head and shoulders slightly raised
B.administer a liquid stimulant
C.lay the crew member down with the head lower than the feet
D.attempt to stand the crew member upright to restore consciousness