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Lesson 2

1. 八纵八横

(https://haokan.baidu.com/v?vid=4391917544731784981)

2. 高铁是怎么运行的

(https://haokan.baidu.com/v?vid=11357247233989244670)

3. 京沪高铁工程简介

(https://haokan.baidu.com/v?pd=wisenatural&vid=1850116029498646137)

4. 京沪高铁也有浮动票价了!

(https://haokan.baidu.com/v?pd=wisenatural&vid=7529382140710457366)

5. 我们的高铁,掌握核心技术了吗?

(https://haokan.baidu.com/v?pd=wisenatural&vid=541526419755505253)

6. 中国高铁技术如此发达,为何只能排第二?

(https://haokan.baidu.com/v?pd=wisenatural&vid=14027245684826391385)

7. 中国时速620km 磁浮列车横空出世!高铁和磁悬浮,到底谁才是未来

(https://haokan.baidu.com/v?pd=wisenatural&vid=2308887585693502146)

8. 体验长沙的磁悬浮列车,国内第二条磁悬浮,太牛了!

(https://haokan.baidu.com/v?pd=wisenatural&vid=7229687157201733785)

9. 八纵八横

(https://haokan.baidu.com/v?pd=wisenatural&vid=6462138433561159917)