7ÔÂ21ÈÕ£¬ÁÉÄþ³¯Ñô½¨Æ½ÏØijÃ׳§´ó»ÆÃ׳ö»õ²Î¿¼¼Û¸ñ3.2-3.3Ôª/½ï£¬Á¸ÉÌÓпâ´æ½ÏÉÙ£¬ÏÂÓÎÐèÇóÆ£Èí£¬Á¸ÉÌ×ß»õ²»¿ì¡£