题目

 用一种试剂鉴别苯酚、甲苯、福尔马林、四氯化碳、乙醇五种无色液体，该试剂是：A．FeCl3溶液                        B．酸性高锰酸钾溶液  C．银氨溶液                         D．浓溴水   答案： D 19．请听一段独白，完成第14至第16小题．14．Why do people often talk about the weather in England？A．Because sometimes they can swim in winter．B．Because they can experience four seasons in one day．C．Because they are interested in talking about that．15．What should they take with them sometimes in summer in England？A．Hats．B．Sunglasses．C．Warm clothes．16．What do some English people often take with them？A．Warm clothes．B．An umbrella．C．A wallet．