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模块七 Module VII Improving our lives《Reading(1)：The first underground in the world》公开课PPT课件优质课下载
1868
Development of the LU system.
Date
Event
1854
1863
1868
An underground railway was approved to be built by the British government.
The first tunnels were opened.
The next section of the underground system was opened in the south of London.
Development of the LU system.
Date
Event
1884
1890
1933
1918-1938
1979
Date
Event
1884
1890
1933
1918-1938
1979