һЩͬѧȥÓÎÔ°£¬Èç¹û×ø4ÈËÒ»ÌõµÄС´¬Òª9Ìõ´¬£¬ºóÀ´¸Ä×ø6ÈËÒ»ÌõµÄ´¬£¬ÐèÒª¼¸Ìõ´¬£¿
4¡Á9¡Â6=6£¨Ìõ£©
Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

ͬ²½Á·Ï°²á´ð°¸