2020×îв¿±à°æСѧһÄ꼶ÓïÎÄϲᵥԪ²âÊÔ¾í£¨È«²á£© ÏÂÔر¾ÎÄ

£¨3£©°ïÖúÓÐÀ§(k¨´n)ÄѵÄÈË¡£ £¨ £© £¨4£©Å¬Á¦Ñ§Ï°£¬È¡µÃºÃ³É¼¨¡£ £¨ £© Ê®¡¢¿´Í¼Ð´»°¡£

Ìáʾ£ºÍ¼ÉÏÓÐË­£¿ËýÃÇÔÚʲôµØ·½£¿ÔÚ¸Éʲô£¿Ð´Ò»¶Îͨ˳µÄ»°¡£

____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________