Ëý¾ªÑȵÄÍû×ÅÎå¸öÈË£¬ÓÐÒ»ÖÖ±»Ï·Ë£µÄ·ßÅ£¬µ«ÊǸü¶àµÄÊǿ־å
¸¸Ä¸Ò»Ìýµ½ËýҪȥÀä¼Ò£¬¶Ùʱ¾Í¸ßÐ˵ò»µÃÁË
Ïò²»Ï²»¶Ç÷Ñ׸½ÊƵİְ־ÓÈ»ÈÃËýºÃºÃ°Í½áÀä¼Ò
ΪֻҪÀä¼Ò¿Ï³öÊÖÏà°ï£¬ÔÚÉ̽çµÄ·»áºÃ×ߺܶàºÜ¶à
ͬÑù£¬µÃ×ïÁËÀä¼Òϳ¡Ò²»áºÜ²Ò
µÃÔø¾Ä³¼ÒµÄ×ܲÃÒòΪ¶ÔÀä±ùÔÆÎÞÀñ£¬¾¹È»Òª°üÑøËû
ÓÚÊǵڶþ¸öÔµÄÄÇÒ»Ì죬ÄǼÒʵÁ¦ÐÛºñµÄ¹«Ë¾±»ÒÄΪƽµØ
ÄǸö×ܲþÝ˵ÊÇÈ¥³åÀ˵Äʱºò±»öèÓã³ÔµôÁË
Óëß®ÑôµÄ»ØÒä(1/2),µã»÷ÏÂÒ»Ò³¼ÌÐøÔĶÁ