科研之友
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摘要
The label on a bottle of pills says "Take one half pill daily." A natural way to proceed is as follows: Every day, remove a pill from the bottle at random. If it is a whole pill, break it in half, take one half, and return the other half to the bottle; if it is a half pill, take it. We analyze the history of such a pill bottle.
- 出版日期2014-4
