题型:选择题 —Let's go and play games. —Sorry, I have ______ work to do. [ ]A. much too B. too much C. too many 查看答案
题型:问答题 A、B、C、D分别是NaCl溶液、NaOH溶液、稀硝酸、BaCl2溶液四种溶液中的各一种,现用另一种试剂X(X是MgSO4溶液、Ca(OH)2溶液、稀盐酸、CuSO4溶液四种溶液中的某一种),按如图所示的方法进行实验.通过实验现象确定:(1)A是______溶液,C是______溶液.(2)X是______溶液. 查看答案