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輪機工程(概要)（包括推進裝置、輔機與輪機英文）題庫下載題庫

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9.Which type of gas is used to extinguish fires by reducing the oxygen concentration of the air surrounding the fire?
(A)Hydrogen
(B)Helium
(C)Carbon-dioxide
(D)Carbon fuel



9.Which type of gas is used to extinguis..-阿摩線上測驗