波音737-800客机真的安全吗 ... 中国国际航空、南方航空、东方航空和海南航空。其中，国航作为我国唯一国际飞行的民用航空公司，在国内被认为 ...
South Korean officials ordered safety inspections of all Boeing 737-800 aircraft operated by the country's airlines as they seek to determine what caused a plane crash that killed 179 people a day ...
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