谁能够徒手开平方根??教教我好吗???谢谢!!!!
http://www.tjjy.com.cn/pkuschool/teacher/its/chu2/sx/2/1.1-3.htm
http://www.51nono.com/gtclub/Announce/Announce.asp?BoardID=13062&ID=36352
http://www.tjjy.com.cn/pkuschool/teacher/its/chu2/sx/2/1.1-3.htm
http://www.51nono.com/gtclub/Announce/Announce.asp?BoardID=13062&ID=36352