左边给定的是纸盒的外表面,下列哪一项能由它折叠而成? {图}

作者: tihaiku 人气: - 评论: 0
问题 左边给定的是纸盒的外表面,下列哪一项能由它折叠而成? {图}
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答案 A
解析 两个面中在棱上非顶点处相交的线展开后为1条直线,B、C、D三项展开后都不符合,只有A项可由左侧图形折成。

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