AMC 8 1998 Problem 18
AMC8 1998 年第 18 题
变换与对称★★★☆☆
As indicated by the diagram below, a rectangular piece of paper is folded bottom to top, then left to right, and finally, a hole is punched at X. What does the paper look like when unfolded?
如下图所示，将一张矩形纸从下往上折叠，再从左往右折叠，最后在 X 处打一个孔。展开后纸张是什么样子？
正确答案 · Correct Answer
B
解析 · Solution
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