The master got permission to pump out 500 tons of clean sea water for ______.A.the purpose of trimmingB.the approval for ballastC.the purpose of voyageD.the approval for operation
The master got permission to pump out 500 tons of clean sea water for ______.
A.the purpose of trimming
B.the approval for ballast
C.the purpose of voyage
D.the approval for operation
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