I have Official Guide and Karplan now. Is that enough? I have some books from xingdongfang, but the printing quality is so poor, I don't want to read it.
By the way, how did you get 720 by yourself? "看了看材料就考才720",你怎么看的?好羡慕呀. My plan is to read Official SC , and do the practice in Karplan. Is that enough ?