·µ»Ø

·âÉñÖ®ÕÙ»½Ãͽ«

Ê×Ò³
¹ØµÆ
»¤ÑÛ
×ÖÌ壺
´ó
ÖÐ
С
µÚһǧ¶þ°Ù¾ÅÊ®ÈýÕ ½ªÎÄ»À´ó¾üµ½À´(1/2)
   ´æÊéÇ© Êé¼Ü¹ÜÀí ·µ»ØÄ¿Â¼
ÍÆ¼ö¶¼ÊдóÉñÀÏÊ©ÐÂÊé:
µÚһǧ¶þ°Ù¾ÅÊ®ÈýÕ ½ªÎÄ»À´ó¾üµ½À´(1/2),µã»÷ÏÂÒ»Ò³¼ÌÐøÔĶÁ
ÉÏÒ»Õ Ŀ¼ ÏÂÒ»Ò³