12ÔÂ30ÈÕ£¬¼ªÁÖËÄƽÀæÊ÷¼¦µ°¼Û¸ñÎȶ¨£¬Ïä×°ºÖ¿Ç´óÂëµ°µã±¨¼Û3.90Ôª/½ï£¬ÖÐСÂë3.95Ôª/½ï£¬»õÔ´Îȶ¨£¬×ß»õÒ»°ã£¬¶ÌÆÚ»ò¹ÛÍû¡£