单项选择题
Put out the fire right now and （）around hold No2.
A.cool B.heat C.hot D.warm
单项选择题 The fire-fighting （）is ready.
单项选择题 Cargo in hold No.2 is on（） .
单项选择题 CO2 and Halon extinguishers are used for electrical fire, as well as （）fire.
