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谜题/如何...?/寄送包裹
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来自维基教科书,开放世界的开放书籍
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谜题
|
如何...?
住在莫斯科的德米特里为他的未婚妻安娜买了一条漂亮的项链,安娜住在圣彼得堡。他想通过邮寄将项链寄给她,但由于俄罗斯邮政服务出现问题,他担心包裹会被打开并被盗窃项链。
这两个城市之间有相当远的距离。
德米特里和安娜都有很多锁、链条和钥匙。
但是,安娜没有德米特里任何一把锁的钥匙,反之亦然。
他如何才能将项链寄给她?
解答
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:
书籍:谜题
华夏公益教科书