×
ͨ¹ýÉç½»ÍøÕ¾Ö±½ÓµÇ¼
¡Á
Ìõ@ÎÒµÄÆÀÂÛ£¬²é¿´@ÎÒ
ÌõÐÂ˽ÐÅ£¬²é¿´Ë½ÐÅ
ÌõÐÂÆÀÂÛ£¬²é¿´ÆÀÂÛ
λзÛË¿ ²é¿´·ÛË¿
Âß¼­Ë¼Î¬ Êý×ÖÍÆÀí Ñ¡ÔñÌâ ¼ÆËã
ÓÚ 2020-07-30 13:05Ìṩ À´Ô´£º33IQÍø
Ò»°ã
(30)

ÔĶÁ²ÄÁÏ£¬»Ø´ðÎÊÌâ
Ò»¸öÕýÕûÊýµÄ½×³Ë£¨¼Ç×÷n£¡£©ÊÇËùÓÐСÓÚ»òµÈÓÚ¸ÃÊýµÄÕýÕûÊýµÄ³Ë»ý£¬Èç5£¡=5*4*3*2*1=120 ¹Û²ìÒ»ÏÂÊýÁÐ
1 8 54 384 £¿ 25920
ʲô¿ÉÒÔ±»ÌîÈëÎʺŴ¦

±êÇ©£º ½×³Ë
¸ÃÌâ×î½ü±»ÊÕ¼ÓÚÌ⼯ Êý×ÖÍÆÀí3ÐÇÌâ
×îºóÐÞ¸ÄÓÚ 2020-07-30 20:06:33
´ð°¸£º
½âÎö£º
ÔÞ 27
ÊÕ²Ø