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【单选题】
液压油油液压系统的危害是_____。I、液压组件润滑不良,II、液压组件受热卡死,III、液压油漏泄严重A.
Ⅱ
B.
Ⅰ+Ⅱ+Ⅲ
C.
Ⅰ
D.
Ⅲ
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【单选题】S1:Avonport port control, this is MV Blue Whale. I am at anchor at Lambs Road. Over.S2:MV Blue Whale, this is Avonport port control. You must heave up anchor .You are at anchor at a wrong position. Yo...
A.
in the center of the fairway.
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