单选题After an occurrence of oil pollution，what shall be done first by a vessel in Chinese port? （）.Ause oil dispersion agent and wait for investigationBtry to collect the oil on deck or in waterCreport to Harbor MasterDB and C
单选题
After an occurrence of oil pollution，what shall be done first by a vessel in Chinese port? （）.
A
use oil dispersion agent and wait for investigation
B
try to collect the oil on deck or in water
C
report to Harbor Master
D
B and C
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