The governor brake shall be capable of controlling the speed of lowering a fully equipped lifeboat with its complement of persons on board at（）.

A.remove them to fresh air
B.flush their face with water for about 5 minutes
C.stand them up and walk them around
D.remove their clothing and wrap them in blankets

A.wash the burned area with a warm soap and water solution
B.flood，bathe，or immerse the burned area in cold water
C.cover the burned area with talcum powder and bandag it cover the burned area with talcum powder and bandage it tightly
D.leave the burned area exposed to the atmosphere

A.yaw joint
B.sway joint
C.slip joint
D.flex or ball joint