题目

下列各组溶液只通过相互滴加不能鉴别出来的是                （    ） A．NaAlO2溶液和盐酸                 B．NaHCO3溶液和Ca(OH)2溶液 C．NaOH溶液和浓AlCl3溶液           D．稀硫酸和碳酸钠溶液 答案：B6．听下面的对话，回答13-15小题．13．What is Mike busy with？A．His exam．         B．His work．       C．His plan for vacation．14．What does Mike think of living in the hotel？A．Fantastic            B．Expensive        C．Uncomfortable15．Where can Mike live when he goes to Mountain Tai？A．At  Emma's home          B．At his uncle's home             C．At Emma's uncle's home．