单项选择题
A.in one of the equipment bags B.in a special pocket near the forward entrance C.on a cord hanging from the canopy D.in a pocket on the first aid kit
A.stored safely in a cool dark non-ventilated area until work is completed B.resealed and returned to a well ventilated area after each use C.covered at all times to protect from ignition sources D.stored in a suitable gear locker
A.Carbon dioxide B.Water (stored pressure) C.Dry chemical D.Foam