·µ»Ø
±ÊÓùÈ˼ä
Ê×Ò³
¹ØµÆ
»¤ÑÛ
×ÖÌ壺
´ó
ÖÐ
С
½ñÍíÒª¸ú´ó»ïÇë¸ö¼Ù(1/2)
´æÊéÇ©
Êé¼Ü¹ÜÀí
·µ»ØÄ¿Â¼
µ÷ÕûÏÂ˼·£¬»¹ÓÐд×÷ÉϵÄÇéÐ÷£¬×î½üÐÄÀï׿±£¬¶Ô¾çÇé¿Ì»²»É»¹ÓнÚ×àÒ²³öÁ˵ãÎÊÌ⣬´º·çÒªºÃºÃÕûÀíÒ»±é¡£
½ñÍíÔÝʱ²»Ð´£¬Ã÷ÌìÇåÃ÷ɨÍêĹ»ØÀ´£¬ÔÙ¸ø´ó¼Ò²¹ÉÏ¡£
½ñÍíÒª¸ú´ó»ïÇë¸ö¼Ù(1/2),µã»÷ÏÂÒ»Ò³¼ÌÐøÔĶÁ
ÉÏÒ»ÕÂ
Ŀ¼
ÏÂÒ»Ò³