·µ»Ø
·ÙÌì·
Ê×Ò³
¹ØµÆ
»¤ÑÛ
×ÖÌ壺
´ó
ÖÐ
С
µÚ¾Å°ÙËÄÊ®ÁùÕ ÖîÌìÒ»Õ½(1/2)
´æÊéÇ©
Êé¼Ü¹ÜÀí
·µ»ØÄ¿Â¼
ħÐÔ·ÖÉíÔÙ´Îã¶×¡£¬ÐÄÖÐÒ»ÕóÎÞÓï¡£
ÕâÊÇÒ»°Ñ¿õÊÀħ½££¬ÊÀ¼äÅÂÊÇÕÒ²»³ö¼¸°Ñ¿ÉÒÔ³¬Ô½´Ë½£µÄÉñÆ÷¡£
µÚ¾Å°ÙËÄÊ®ÁùÕ ÖîÌìÒ»Õ½(1/2),µã»÷ÏÂÒ»Ò³¼ÌÐøÔĶÁ
ÉÏÒ»ÕÂ
Ŀ¼
ÏÂÒ»Ò³