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謎題/如何...?/寄送包裹
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來自華夏公益教科書,開放世界的開放書籍
<
謎題
|
如何...?
住在莫斯科的德米特里為他的未婚妻安娜買了一條漂亮的項鍊,安娜住在聖彼得堡。他想透過郵寄將項鍊寄給她,但由於俄羅斯郵政服務出現問題,他擔心包裹會被開啟並被盜竊項鍊。
這兩個城市之間有相當遠的距離。
德米特里和安娜都有很多鎖、鏈條和鑰匙。
但是,安娜沒有德米特里任何一把鎖的鑰匙,反之亦然。
他如何才能將項鍊寄給她?
解答
類別
:
書籍:謎題
華夏公益教科書