3ÔÂ7ÈÕ£¬¹óÖÝÊ¡°²Ë³Êжþ»Æ½ª£º½»Ò×»îÔ¾¶È²»¸ß£¬³É½»Ò»°ã£¬¼Û¸ñÎȶ¨¡£ºÃ»õ¼Û¸ñ²Î¿¼1.70-1.80Ôª/½ï£¬Ò»°ã¼Û¸ñ1.40-1.50Ôª/½ï£¬´Î»õ¼Û¸ñ1.20-1.30Ôª/½ï£¬ÒÔÖÊÂÛ¼Û¡£