这次空难发生在海上，官方认为机上人员生还的可能性渺茫。
The air crash happened on the sea and the government gave the people on board up for lost.
第一百七十四条船长在不严重危及本船和船上人员安全的情况下，有义务尽力救助海上人命。
Article 174 Every Master is bound, so far as he can do so without serious danger to his ship and persons on board, to render assistance to any person in danger of being lost at sea.
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