第15题: [单项选择]How would fresh water be supplied to the city A. By treating sea water. B. By getting it from the surrounding islands. C. By building a small lake of fresh water inside the city. D. By transporting it from the mainlan 参考答案:A 答案解析:本题为细节辨析题。文中提到,城市里要建一座工厂,该工厂能够把海水转化为淡水。因此,城里淡水的供应是要靠对海水进行处理。