A:自力更生、艰苦奋斗
B:以经济建设为中心
C:四项基本原则
D:改革开放
I used to be crazy about the film when I was young, but I ____ it that way any more.
将0.1molCu与40ml 10mol/LHNO3充分反应,测得反应后溶液里含有amol H+由此可知: