คำถามที่ง่ายสุดๆ

คำถามนี้มาจากเว็ป:http://blog.janthai.com/%E0%B8%84%E0%B9%8D%E0%B8%B2%E0%B8%96%E0%B8%B2%E0%B8%A1%E0%B8%81%E0%B8%A7%E0%B8%99%E0%B9%86-%E0%B8%84%E0%B8%B3%E0%B8%96%E0%B8%B2%E0%B8%A1%E0%B8%AE%E0%B8%B2%E0%B9%86-3084.html