贸易 来源:互联网 时间:2023-05-17 02:38:29
(资料图)
1、根据题干分析可得:第n阶段,积木个数是3n; 当n=8时,3×8=24(个)。
2、 答:第8阶段有24个积木. 故选:B.。
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