阶段一,阶段二,阶段三,学业分层测评,1/44,2/44,3/44,每一个数,第一位,4/44,有限,无限,大于,小于,相等,大于,5/44,6/44,7/44,公式,n,8/44,正整数集,从小到大依次取值,列表,图象,9/44,10/44,11/44,12/44,13/44,数列概念及分类,14/44,15/44,16/44,17/44,18/44,19/44,20/44,XXX,由数列前几项求通项公式,21/44,22/44,23/44,24/44,25/44,26/44,27/44,28/44,数列通项公式意义,29/44,30/44,31/44,32/44,33/44,34/44,35/44,36/44,37/44,38/44,39/44,40/44,41/44,42/44,43/44,44/44,