题目内容
Is _______ Qinghai-Tibet Railway plays an important role in China’s railway history the
topic that you’re coming to?
A. it B. that C. what D. this
B
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题目内容
Is _______ Qinghai-Tibet Railway plays an important role in China’s railway history the
topic that you’re coming to?
A. it B. that C. what D. this
B