若干个棱长为1的正方体叠成的几何体的三维图(如图)，则组成该几何体的正方体的个数是( )。 A.4个 B.5个 C.6个 D.7个

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问题若干个棱长为1的正方体叠成的几何体的三维图(如图)，则组成该几何体的正方体的个数是( )。

选项 A.4个 B.5个 C.6个 D.7个

答案 C

解析

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