CIIC:Selected anniversaries/April 29

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Revision as of 00:33, 29 April 2010 by imported>Ciic (Created page with 'thumb|200px|right|Li Siguang 1971: Geologist Li Siguang passed away. 1991: Yangpu suspension bridge began construction.')

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Li Siguang

1971: Geologist Li Siguang passed away.

1991: Yangpu suspension bridge began construction.

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