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单选题
Seawater may be used for drinking water （）.
A
at a maximum rate of two ounces per day
B
after mixing with an equal quantity of fresh water
C
if gather during or immediately after a hard rain
D
under no circumstance
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单选题The tailshaft sealing arrangement found a little lube oil leaky and caused a lot of seawater into the bearing, the step should be taken as a makeshift is（）A
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单选题Seawater may be used for drinking（）.A
under no conditionsB
at a maximum rate of two ounces per dayC
if gathered during or immediately after a hard rainD
after mixing with an equal quantity of fresh water
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单选题Which statement concerning the collection of fresh water is FALSE?（）A
Fresh water may be obtained from fishB
Lifeboat covers or canopies should be washed with rain before drinking water is collectedC
Fresh water may be collected from condensation inside the liferaftD
Seawater should never be consumed
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