高中文理综合合集百度网盘下载
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简介：高中文理综合优质资料下载，包括：试题试卷、课件、教材、视频、各大名师网校合集。
One possible version:
The traffic issue is a hard nut to crack. It not only affects our everyday life, but may also threaten people’s ives. The three selections presented above are typical examples.
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