·µ»Ø
ÎÒ±»²¡½¿Å®ÓѰ®µÄËÀÈ¥»îÀ´
Ê×Ò³
¹ØµÆ
»¤ÑÛ
×ÖÌ壺
´ó
ÖÐ
С
Çë¼ÙÌõ¡£(1/2)
´æÊéÇ©
Êé¼Ü¹ÜÀí
·µ»ØÄ¿Â¼
Ã÷Ìì¶Ï¸üÒ»Ì죬ÓеãÀÛÁË£¬Ðª²ËÁË¡£
Ò²¾ÍÊÇ˵£¬¸üлáÔÚÖÜËÄ£¬È»ºóÄÇÌì˳±ã»¹ÓиöÉϼܸÐÑÔ£¬¸ú´ó¼ÒÁÄÒ»ÁÄ¡£
Çë¼ÙÌõ¡£(1/2),µã»÷ÏÂÒ»Ò³¼ÌÐøÔĶÁ
ÉÏÒ»ÕÂ
Ŀ¼
ÏÂÒ»Ò³