题目内容

How many writing methods the author uses in this passage? What are they?

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Can you pick out the transitional words used in this passage?

动车组两端部车辆转向架最外端的轮对上设有( ),及时清理运行方向首条车轮前的钢轨表面。

CRH5A型动车组改进方案全列车采用( )座椅。

( )型动车组在CRH5各型动车组中配属数量最多。

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