【简答题】A.There is a greater demand of clean water. B.More water sources are polluted or disappearing. C.Developed countries consume too much water. D.More water is ruined and developed countries consume too ...
【简答题】A.There is a greater demand of clean water. B.More water sources are polluted or disappearing. C.Developed countries consume too much water. D.More water is ruined and developed countries consume too ...