单选题Hygroscopic cargoes should be ventilated when（）.Agoing from a warm to a cold climateBthe dew point of the outside air is greater than the dew point of the air in the holdCthe dew point of the air in the hold is very lowDthe outside dew point is 16°C and the cargo temperature is 12°C
单选题
Hygroscopic cargoes should be ventilated when（）.
A
going from a warm to a cold climate
B
the dew point of the outside air is greater than the dew point of the air in the hold
C
the dew point of the air in the hold is very low
D
the outside dew point is 16°C and the cargo temperature is 12°C
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