单项选择题
A.at the base of the flames B.at the center of the flames C.to the lee side of the flames D.over the tops of the flames
The disadvantage of using CO2 is that the（）.A.CO2 does ...
单项选择题The disadvantage of using CO2 is that the（）.
A.CO2 does not cool the fire B.cylinders are regulated pressure vessels C.C02 is not effective on class B fires D.C02 is not effective on class C fires
The collision bulkhead shall be of（）.A.water-tightB.air...
单项选择题The collision bulkhead shall be of（）.
A.water-tight B.air-tight C.fire-tight D.oil-tight
The carrier is liable for loss of or damage to the good...
单项选择题The carrier is liable for loss of or damage to the goods or delay in delivery caused by fire，（）the claimant proves that the fire arose from fault or neglect on the part of the carrier，his servants or agents.
A.should B.shall C.that D.if
