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 (05·上海C篇)Acrosstheworld,1.1billionpeoplehavenoaccessto...
  •  (05·上海C篇)Acrosstheworld,1.1billionpeoplehavenoaccessto...

  • 问题详情: (05·上海C篇)Acrosstheworld,1.1billionpeoplehavenoaccesstocleandrinkingwater.Morethan2.5billionpeoplelackbasicsanitation.(卫生设备)Thecombinationprovesdeadly.Eachyear,diseasesrelatedtoinadequatewaterandsanitationkillbetween2and5millionpeopl...
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