ÍòÉ·½£Õó´ÓÖþ»ùÆÚ¾Í¿ªÊ¼ÆÌµæÁË£¬×îÇ¿µÄÓ¦¸ÃÊÇÕòѹͨÌìħ×ðÄÇÀÁ·Ðé³õ¸ÕÓµÓкÏÌåÈâÉí£¬·¨Á¦Ö»ÓÐÁ·ÐéµÄħ×ð£¬ÍþÁ¦ÊÇÀϺ«µÄ´ó¸ý¡£
Сº«µÄÍòÉ·½££¬¾¹ýÏɵÀ½£Æø£¨¾Å·¨ºÓ£©£¬½£³Ø£¬ÖÐÑë¹Ç½£½£Æø£¬º£Á¿ÌìµØÔªÆø¹àÊ䣬ÒѾ²»ÏÂÓÚ£¬ÉõÖÁ³¬¹ýÁ˵ÚÒ»Ì×ÍòÉ·½££¬Ô¶Ç¿ÓÚ̫һ×ڵĽ£Õó£¨ÄÜÈúóÆÚÔÚ»¯ÉñÃæÇ°×Ô±£Ö®Á¦µÄ½£Õ󣩣¬¶¨Î»ÊÇÕâÑù¡£
½£ÕóÍþÁ¦ÉÏÀ´£¬½ÓÏÂÀ´¾ÍÊÇ´ß¶¯ÁË£¬ºóÆÚ¿Ï¶¨ÎÞ·¨È«Á¦´ß¶¯£¬µ«Ç°ÃæÓйý¼¸´¦ÆÌµæ£¬Óиö·½·¨ÄÜÈÃËû·¢»Ó¼¸³ÉÍþÁ¦£¬µ«Ò²×ã¹»¸Õ»¯Éñ£¬ÔÙ¼ÓËûÈâÉí£¬Í«ÊõµÈµÈ£¬ÊµÁ¦ÒÑÈ»´ïµ½»¯Éñ¡£
Öí½ÅʵÁ¦(1/2),µã»÷ÏÂÒ»Ò³¼ÌÐøÔĶÁ