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