交通事故处理过程中，使用破拆工具破拆车体时，应使用()掩护，防止金属碰撞产生火花，引起油蒸气爆炸，发生火灾。
A. 雾状水
B. 直流水
C. 直流水或开花水
D. 泡沫液
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（） allows the engine to be placed wherever is most suitable, as they no longer have to be aligned with reduction gearing and shafting as is the case with conventional installations.
A. Diesel engine propulsion
B. Diesel electric propulsion
C. Steam engine propulsion
D. Gas turbine propulsio
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