並前往http://www.oloccps.edu.hk/oloccp/academic/maths/images/p6/%E5%85%AD%E5%B9%B4%E7%B4%9A%E4%B8%8A%E5%AD%B8%E6%9C%9F%E5%AD%B8%E7%BF%92%E9%8C%A6%E5%9B%8A(6%E4%B8%8AB%E5%86%8A)(12-19%E8%AA%B2).pdf
