±¾ÖÜÇൺ¸ÛÃåµéÂ̶¹¼Û¸ñ¼ÌÐø»ØÂ䣬¸Û¿ÚÄ¿Ç°¼Û¸ñÂÒÏó½ÏΪÑÏÖØ£¬²¿·ÖÒò¼Ó¹¤±ê×¼²»Ò»£¬¼Û²îÃ÷ÏÔ¡£Ä¿Ç°3.0-3.9ɸÖÐÁ£ÓÍÂ̶¹³ö»õ²Î¿¼¼Û3.65Ôª/½ï£¬´æÔڵͼۻõÔ´¡£Ð¼¾ÃåµéëÔÓÂ̶¹³ö»õ²Î¿¼¼Û3.4-3.45Ôª/½ï¡£

ÏêÇéÇëµã»÷£º

Â̶¹Öܶȱ¨¸æ£¨6.29-7.6£©.pdf