航海英語固體散貨運輸及有關(guān)規(guī)則單項選擇題每日一練(2019.01.20)

來源：考試資料網(wǎng)

1 Before loading bulk grain，bilge wells must be covered to（）.

2 The disinfection of various compartments in a vessel by filling them with a gaseous agents to destroy rats etc.means（）.

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3 Ship’s officers should check every cargo compartment after it is filled with bulk grain to ensure（）.

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4 The correction to KG for longitudinal free surface effects for a vessel can be found by dividing the vessel’s displacement into the（）.

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5 The disinfection of various compartments in a vessel by filling with a gaseous agent to destroy rats and all insects pests which act as germ carriers means（）.

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