随机对照试验是临床试验的金方案，但其实施条件严格，临床依从性低。
Randomized controlled trial is called golden design of clinical trial, but it has a strict condition and a low compliance.
自由开放源码许可意味着这些条件不是严格限制的，可以得到的自由程度是显著的。
Liberal open source license means that these conditions are not terribly restrictive, and the degree of freedom you get is significant.
人们更担心的是借款的信用条件变得严格。
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