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On a vessel proceeding from a very cold to a warm climate with a cargo of a nonhygroscopic nature in the holds，which is TRUE?（）.
A:Danger of heavy ship sweat exists； constant and vigorous ventilation is required
B:There is danger of heavy cargo sweat if outside air is introduced by ventilation
C:There is little danger of ship's sweat，slight possibility of cargo sweat； moderate ventilation is needed
D:The possibility of any sweat problem，either cargo or ship，is remote

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出自：海船船员证

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