ブラウザの設定でJava Scriptの使用を有効にしてご利用ください。
出典:Wikipedia
出典:『Wikipedia』 (2011/07/03 00:57 UTC 版)
The Walkerton Tragedy is a series of events that accompanied the contamination of the water supply of Walkerton, Ontario, Canada, by E. coli bacteria in May 2000.
Walkerton Tragedy