·µ»Ø

ÂþÍþ¶¾Òº£¬¿ª¾Ö¾ÅÍ·ÉßÎÔµ×

Ê×Ò³
¹ØµÆ
»¤ÑÛ
×ÖÌ壺
´ó
ÖÐ
С
Çë¼ÙÌõ£¬×îºóÒ»´ÎÁË£¬Ã÷Ì츴¸ü(1/2)
   ´æÊéÇ© Êé¼Ü¹ÜÀí ·µ»ØÄ¿Â¼
    Çë¼ÙÌõ£¬½áʯÁË£¬ÔÚÒ½Ôº£¬Í´²»ÓûÉú

Çë¼ÙÌõ£¬×îºóÒ»´ÎÁË£¬Ã÷Ì츴¸ü(1/2),µã»÷ÏÂÒ»Ò³¼ÌÐøÔĶÁ
ÉÏÒ»Õ Ŀ¼ ÏÂÒ»Ò³