µÚËİÙһʮ¶þÕ ǰÏß³Ô½ô(1/2)
²»¹ýËûÄÄÀïÖªµÀ×Ô¼ºµÄÖ÷¹«£¬ÐÄ˼²¢²»ÔÙÕâ¸öÉÏÃæ£¬¶øÊÇÔÚ×Ô¼ºµÄÌìÊéÉÏÃæ£¬²»¹ÜÔõô£¬Ò»ÇеÄÔ´Í·¶¼ÊÇʵÁ¦£¬ÊµÁ¦²»ÐУ¬±»Í̲¢£¬ÄÇôҲÊǾÌÓÉ×ÔÈ¡¶øÒÑ¡£Ã÷°×ÁËÕâ¸ö£¬Àä˪µÄÐÄÍ·Ö®Öб㸡ÏÖ³öÀ´Ò»±¾ÌìÊ飬¿´×ÅÌìÊéÉÏÃæµÄ¼¸¸ö×Ö¼££¬Àä˪±ã¸Ð̾ÁËÒ»¾ä£¬ÔÀ´ÔÚ²»Öª²»¾õÖ®ÖУ¬×Ô¼ºÒѾ³É¾ÍÁËÈç´Ë¸ßµÄµØ²½£¬Ê±¼ä»¹ÕæµÄÊÇ×ҪǮµÄ´æÔÚ¡£
µÚËİÙһʮ¶þÕ ǰÏß³Ô½ô(1/2),µã»÷ÏÂÒ»Ò³¼ÌÐøÔĶÁ