並前往https://math.ymhs.tyc.edu.tw/masterchen/chenyan/TeaPlan108/Contns/1092/%E9%AB%98%E4%BA%8C%E4%B8%8BBL/109%E4%B8%8B%E9%AB%98%E4%BA%8CBL(%E5%96%AE%E5%85%833)(%E4%B8%8A%E8%AA%B2%E7%B7%B4%E7%BF%92).pdf