然而，笔者注意到一个较为关键的问题：几乎所有的研究都把侦查行为预设为具有强制性，实际上并不尽然。
Thecritical problem is, the nature of investigation behaviors are supposed tobe coercive in advance, but of course it is not.
雅虎知识堂上有一些学术圈子，笔者注意到物理社区做的很好，用户一直在齐心协力的提供精准的答案以及详细的解答过程。
In some academic areas—physics is one I've noticed—the Answers community consistently does an impressive job of providing accurate answers and a clear explanation of how to get them.
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