题目

 ___76___ But by using a college admissions consultant (咨询员), you can greatly increase your chances of getting accepted into the first college on your list. These consultants are people who are expert at getting people just like you into the college of their dreams. ___77___ They can make a difference in your college admission quest.     Help finding schools. Perhaps you don’t know where you want to go or only have an unclear idea as to where you would like to go. Your consultant can give you many ideas as to which schools would be fit for you and then you can go from there下图分别与相应的操作过程相对应,其中正确的是( )A.向一定量接近饱和的硝酸钾溶液中不断加入硝酸钾晶体(不考虑温度变化)B.将镁片和锌片(均足量)分别和等质量、等溶质质量分数的稀硫酸混合C.向pH=10的氢氧化钙溶液中不断加水稀释D.向硫酸铜溶液中加入过量的氢氧化钠溶液
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