5ÔÂ30ÈÕ£¬¹ãÎ÷ÓñÁÖÅú·¢Êг¡Æ»¹ûÅú·¢¼Û¸ñÆ«Èõ£¬É½Î÷¼ªÏØ70#¿ð×°3.0Ôª/½ï£¬80#Æ𲽿ð×°¸»Ê¿3.8Ôª/½ï×óÓÒ¡£½üÆÚÎ÷¹ÏµÈʱÁîÏʹûÐèÇóÁ¿ÉÏÉý£¬Æ»¹û½»Ò×·ÕΧתµ­£¬³É½»Á¿¼õÉÙ¡£