·µ»Ø
ÎÒµÄÁÚ¼Ò±í½ãÕųÉÉòÇç¶ù
Ê×Ò³
¹ØµÆ
»¤ÑÛ
×ÖÌ壺
´ó
ÖÐ
С
µÚËÄǧÆß°ÙËÄʮһÕ ÊÇÃΣ¿²»ÊÇÃΣ¿(1/2)
´æÊéÇ©
Êé¼Ü¹ÜÀí
·µ»ØÄ¿Â¼
..£¬ÄÇЩÈÈѪ·ÉÑïµÄÈÕ×Ó
ÕýÔÚÊÖ´òzhong£¬ÇëÉÔµÈÆ¬¿Ì
ÄÚÈݸüкó£¬ÇëÖØÐÂË¢ÐÂÒ³Ãæ£¬¼´¿É»ñÈ¡×îиüУ¡
µÚËÄǧÆß°ÙËÄʮһÕ ÊÇÃΣ¿²»ÊÇÃΣ¿(1/2),µã»÷ÏÂÒ»Ò³¼ÌÐøÔĶÁ
ÉÏÒ»ÕÂ
Ŀ¼
ÏÂÒ»Ò³