A、A.wearing a life jacket
B、B.wearing a safety harness secured to the stage
C、C.wearing both a life jacket and a safety harness secured to the stage
D、D.the vessel is not making way
更多“A vessel is underway with a work stage rigged over the side. A seaman may work on the stage，but only when（）.”相关的问题
A、she is underway B、she is not underway C、whether she is underway cannot be determined D、she might be or not be underway
A、vessel not under command B、sailing vessel C、vessel being towed (manned) D、vessel being towed (unmanned)
A、A vessel picking up a navigation mark B、A vessel transferring cargo while underway C、A vessel whose anchor is fouled D、A vessel in a towing operation that restricts the ability of the vessel and her tow to change their course
A、A vessel picking up a navigation mark B、A vessel transferring cargo while underway C、A vessel whose anchor is fouled D、A vessel in a towing operation that restricts the ability of the vessel and her tow to change their course
A、be regarded as a vessel not under command B、be regarded as a vessel underway C、be regarded as a vessel D、be regarded as a sailing vessel
A、A vessel transferring provisions while underway B、A pushing vessel and a vessel being pushed when connected in a composite unit C、A vessel servicing a navigation mark D、A vessel launching aircraft
A、A vessel transferring provisions while underway B、A pushing vessel and a vessel being pushed when connected in a composite unit C、A vessel servicing a navigation mark D、A vessel launching aircraft
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