在正方体的表面上画有如图4 a所示的粗线,图4 b是其展开图的示意图

在正方体的表面上画有如图4 a所示的粗线,图4 b是其展开图的示意图,但只在A面上有粗线,那么将图4 a中剩余两个面中的粗线画入图4 b中,画法正确的是 (  )

答案

A  

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