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【单选题】

If a small fire initially breaks out in the engine room bilges, in which of the following sequences should the fire extinguishing agents or systems be used?（）

A、Fixed CO2,semi-portable CO2, then hand portable CO2

B、Semi-portable CO2, fixedCO2, then hand portable CO2

C、Hand portable, semi-portable CO2, then as a last resort the fixed CO2 system

D、Hand portable, fixed CO2, then as a last resort the semi-portable CO2

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第9题
[单选题] If the scavenge fire is of a more major nature, if there is a risk of the fire extending or if the scavenge trunk is adjacent to the crankcase with risk of a hot spot developing it sometimes becomes necessary to （）the engine.

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第10题
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