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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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39.What device is generally designed to avoid the exposure of fire to the air and to put out the fire?
(A)fire extinguisher
(B)fire alarm
(C)fire detector
(D)fire exposurer


39.What device is generally designed to ..-阿摩線上測驗