·µ»Ø

ËÀÉñ£ºÎÒÓÃDNF·ÖÉí×öÄ»ºó´óÀÐ

Ê×Ò³
¹ØµÆ
»¤ÑÛ
×ÖÌ壺
´ó
ÖÐ
С
µÚÈýÊ®¶þÕ Ã÷ÌìÖÐÇÇëÒ»Ìì¼Ù(1/2)
   ´æÊéÇ© Êé¼Ü¹ÜÀí ·µ»ØÄ¿Â¼
ËäȻһ°ã¶¼ÊÇÖÐÇïÇë¼Ù°É£¨£©

    ²»¹ý°³ÌáǰһÌ죬½ñÌìÓÐͬѧ»ØÀ´³öÈ¥³Ô¶Ù·¹É¶µÄ£¬ÖÐÇﲻͣ
µÚÈýÊ®¶þÕ Ã÷ÌìÖÐÇÇëÒ»Ìì¼Ù(1/2),µã»÷ÏÂÒ»Ò³¼ÌÐøÔĶÁ
ÉÏÒ»Õ Ŀ¼ ÏÂÒ»Ò³