3ÔÂ2ÈÕÏûÏ¢£¬¶«Ý¸Ã³Ò×ÉÌ43%¶¹ÆÉÔ¶Ô»ù²î±¨¼Û3ÔÂ20-4ÔÂ15ÈÕÌá»õM2205+600£¬4ÔÂM2205+400£¬4-5ÔÂM2205+200£¬5-7ÔÂM2205+200¡£