·µ»Ø

³þ·ãÐÞÂÞÎäÉñ´ó½á¾Ö

Ê×Ò³
¹ØµÆ
»¤ÑÛ
×ÖÌ壺
´ó
ÖÐ
С
µÚÈýǧ¾Å°ÙÈýÊ®¶þÕ ÎÞÄεijþ·ã(1/2)
   ´æÊéÇ© Êé¼Ü¹ÜÀí ·µ»ØÄ¿Â¼
    ´Ëʱ£¬³þ·ãÕýÔÚÏò¾«ÉñȪˮËùÔڵķ½ÏòÐÐÈ¥¡£

    ²»Ö¹ÊÇËû£¬Õâ·ÉÏ»¹ÓÐ×ÅÐí¶àÈË¡£

    Ö»ÊÇ£¬ÓÐЩÈË×ß×Å×ß×Å£¬±ã¿ªÊ¼Æø´­ÓõÓõ£¬ÉõÖÁ´óº¹ÁÜÀ죬²½ÂÄά¼è¡£

    ²¢ÇÒ»¹ÓÐÈËÌ±×øÔڵأ¬±íʾÒÑÊÇÎÞ·¨¼ÌÐøÇ°ÐÐÁË¡£
µÚÈýǧ¾Å°ÙÈýÊ®¶þÕ ÎÞÄεijþ·ã(1/2),µã»÷ÏÂÒ»Ò³¼ÌÐøÔĶÁ
ÉÏÒ»Õ Ŀ¼ ÏÂÒ»Ò³