·µ»Ø
ÎäÉñ¿Õ¼ä
Ê×Ò³
¹ØµÆ
»¤ÑÛ
×ÖÌ壺
´ó
ÖÐ
С
µÚһǧÎå°ÙÈýʮһÕ ս±±É½¾ø(1/2)
´æÊéÇ©
Êé¼Ü¹ÜÀí
·µ»ØÄ¿Â¼
ÔĶÁ¡£)
ps£ºµÚ¶þ¸üµ½£¬Çó¶©ÔÄÖ§³Ö£¡
µÚһǧÎå°ÙÈýʮһÕ ս±±É½¾ø(1/2),µã»÷ÏÂÒ»Ò³¼ÌÐøÔĶÁ
ÉÏÒ»ÕÂ
Ŀ¼
ÏÂÒ»Ò³