並前往https://www.coursehero.com/file/p4d2g9i/%E4%BB%A5%E4%B8%8B%E9%97%9C%E6%96%BC-APT-%E4%B9%8B%E6%95%98%E8%BF%B0%E4%BD%95%E8%80%85%E7%82%BA%E6%AD%A3%E7%A2%BA-%E2%85%A0-%E5%9C%A8-APT-%E4%B9%8B%EF%A7%A4%EF%A5%81%E6%9E%B6%E6%A7%8B%E4%B8%8B%E5%B8%82%E5%A0%B4%E6%8A%95%E8%B3%87%E7%B5%84%E5%90%88%E7%82%BA%E4%B8%80%E6%95%88%EF%A5%A1%E7%B5%84%E5%90%88-efficient-portfolio-%E2%85%A1-APT/