The levees failed because of bad engineering, not just because K

来源: soccer88 于 2015-08-31 12:49:22 [] [博客] [旧帖] [给我悄悄话] 阅读数 : (292 bytes)

http://www.vox.com/2015/8/23/9191907/hurricane-katrina

 

Katrina caused the biggest evacuation in US history, but many people couldn't afford to leave

 

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