A、ships of above 200 GT to MARPOL
B、every ship of 400 GT and above
C、all ships
D、ships of more than 200 GT but less 400 GT
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A、ships of above 200 GT to MARPOL
B、every ship of 400 GT and above
C、all ships
D、ships of more than 200 GT but less 400 GT
时间：2022-01-03 19:30 关键词： 船舶电气与船舶安全