题目内容
Qinghai-Tibet Railway(青藏铁路)was completed last year.It is the railway that connects Tibet with the other parts of China.
A.first B.second C.third D.fourth
A

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题目内容
Qinghai-Tibet Railway(青藏铁路)was completed last year.It is the railway that connects Tibet with the other parts of China.
A.first B.second C.third D.fourth
A