(2.5 分)
The logbook must be submitted ______ to the superintendent of the owner or the marine authorities for justification, checking or approval.
A.on completion of the voyage B.in a harbor C.at anchorage D.underway正确答案A
(2.5 分)
The logbook must be submitted ______ to the superintendent of the owner or the marine authorities for justification, checking or approval.
A.on completion of the voyage B.in a harbor C.at anchorage D.underway正确答案A