China' s civil aviation industry has gained sustainable growth over decades.It has the most member airlines of IATA.
A.正确
B.错误
正确答案：正确
China' s civil aviation industry has gained sustainable growth over decades.It has the most member airlines of IATA.
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By the end of 2018， China' s civil aviation has realized a zero-accident record in over 100 months.
China has established a complete technological system for high speed railway.The survey and design， equipment development， const
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