ÕâÑùÒ²Ðí²ÅÊÇÎÒÏëÒªµÄÉú»î£¿
¼ò¼òµ¥µ¥È´ºÜÐÒ¸££¬ÄǸöËùνµÄ¼Ò£¬¾Í²»ÓÃÔÙ»ØÈ¥ÁË£¿
Ö»ÊǰְÖÄDZßÒ²Ðí»¹Òª½»´úһϣ¬µ«ÊDz»¹ÜÔõôÑù£¬ÄÇÀï¶¼ÒѾ³ÉΪÁ˹ýÈ¥
ÎÒÒªºÍÄǸöÎÒ°®µÄÈËÒÔ¼°°®ÎÒµÄÈË¿ªÊ¼ÐµÄÈËÉú
°²ß®Ñô¡ª¡ªÎÒ°®Ä㡪¡ª¡ª¡ª£¡
ÎÒÿÌì¶¼¶Ôן£±ß´óº°×Å£¬ÎÒµÄÍ´Õý½¥½¥Ëæ×ÅÄÇÒ»ÉùÉùÔ¶È¥µÄ½Ðº°¼õµ£¬¼õµ¡¡
ÍíÉÏ˯µÃÃÔºý£¬ºÃ¾ÃûÀ´µÄß®Ñô×ê½øÎҵı»ÎÑ£¬°ÑÎÒŪÐÑ£¬ÈÈÇéµÄÎÇ×ÅÎÒ
¡°Å¯¡¡¡±
¡°Ñô¡¡¡±
ÎÒ»¹Ã»ÓÐÍü¼Ç(1/2),µã»÷ÏÂÒ»Ò³¼ÌÐøÔĶÁ