（）does not belong to the mooring trial item.<br>A:generator sets running trial<br>B:shafting intensity trial<br>C:the trail for pumps that working for ME<br>D:ME safety devices trial

（）does not belong to the mooring trial item.
A:generator sets running trial
B:shafting intensity trial
C:the trail for pumps that working for ME
D:ME safety devices trial

出自：海船船员证

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