问题：
[单选题]The fire extinguishing action of CO2 comes mostly from （）.
A、breaking the fire chemical chain reaction
B、smothering
C、cooling
D、isolating the heat from the fuel
参考答案：
B
相关内容
- ● The type of extinguiher which hould be ued for an electricity fire i（）.
- ● If the action of the engine indicate that ome of the cylinder are not firing, the one affected may be determined by watching （）.
- ● The cla of fire on which a blanketing effect i eential to extinguih the fire i （）.
- ● The defence and limit of liability（）in thi bill of lading hall apply in any action againt the carrier for lo of or damage to the good whether the action be founded in contract or in tort.
- ● The fire extinguihing action of CO2 come motly from （）.
- ● In order to releae CO2 to the machinery pace from a fixed fire extinguihing ytem, you mut（）.
- ● The carrier i liable for lo of or damage to the good or delay in delivery caued by fire，（）the claimant prove that the fire aroe from fault or neglect on the part of the carrier，hi ervant or agent.
- ● Dry chemical fire extinguiher are effective on which type() of fire?（）
- ● If a CO2 fire extinguiher i not readily available, which of the lited fire extinguiher would be bet uited to combat a mall electrical fire in a witchboard?（）
- ● How do you operate a portable CO2 fire extinguiher?（）.
- ● Generally，the firt action in extinguihing an LFG fire caued by ecaping ga i to（）.
- ● Generally, the firt action in extinguihing an LFG fire caued by ecaping ga i to（）.
