题目

只用一种试剂就可以鉴别乙酸溶液、葡萄糖溶液、蔗糖溶液，这种试剂是(     ) A．NaOH溶液   B．新制Cu（OH）2悬浊液    C．石蕊试液   D．Na2CO3溶液 答案：B8.—I am very with my job now. What should I do? —Why don't you for a few months?   A. boring;rest      B. bored;to rest   C. boring;to rest   D. bored;rest