4ÔÂ4ÈÕ£¬Ä¿Ç°É½¶«Êг¡ÂóÑ¿Ìǽ¬Ö÷Á÷Ç©µ¥¼ÛÔÚ2840-3050Ôª/¶Ö£¬³§¼Ò³É½»ÐèÏê̸¡£½üÆÚÖÕ¶ËÐèÇóÒ»°ã£¬Ô­ÁÏÆ«ÈõÏ£¬ÆóÒµ³É½»Ð¡·ù×ߵ͡£