The most important thing about cotton in history is __ part that it played in __ Industrial Revoluti

题干

The most important thing about cotton in history is __ part that it played in __ Industrial Revolution.

A：/, /

B：the, /

C：the, the

D：a, the

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①号图表示将正方体的棱长平均分成2份；②号图表示将正方体的棱长平均分成3份；③号图表示将正方体的棱长平均分成4份；那么每种情况中，分割产生的小正方体三面涂色、两面涂色、一面涂色的个数各是多少个？将涂色的大正方体的棱长平均分成n份呢？请填写下表。

① ② ③