·µ»Ø

ÁÄÕ«¼ÙÌ«×Ó

Ê×Ò³
¹ØµÆ
»¤ÑÛ
×ÖÌ壺
´ó
ÖÐ
С
¸üÐÂÍÆ³Ù¡­¡­(1/2)
   ´æÊéÇ© Êé¼Ü¹ÜÀí ·µ»ØÄ¿Â¼
Ô½ÊÇÏëºÃºÃд£¬Ô½ÊÇд²»³öÀ´£¬Ô½ÊÇÏë¶à¸üÐÂÒ»µã£¬Ô½ÊÇд²»³öÀ´£¬×î½üÒ»Ö±¶¼ÔÚ¿´Êé³äµç£¬»¹ÊǸоõ²»ÐС­¡­ÂýÂý°¾Ò¹´òÄ¥°É
¸üÐÂÍÆ³Ù¡­¡­(1/2),µã»÷ÏÂÒ»Ò³¼ÌÐøÔĶÁ
ÉÏÒ»Õ Ŀ¼ ÏÂÒ»Ò³