单选题 1分

A vessel is underway with a work stage rigged over the side. A seaman may work on the stage, but onl...

A vessel is underway with a work stage rigged over the side. A seaman may work on the stage, but only when____
  • A. wearing a life jacket
  • B. wearing a safety harness secured to the stage
  • C. wearing both a life jacket and a safety harness secured to the stage
  • D. the vessel is not making way

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