Analysts say the resulting probe into Goldman Sachs investment practices could help President Barack Obama, who delivers a major speech Thursday on why financial reform is needed.

VOA: standard.2010.04.19

That's a really good question because if I open this up, why wouldn't it just reform with itself, why would it want to have this in here?

这是个很好的问题,如果我把质粒打开,为什么它不会自己合上,为什么它会与DNA片段重组呢

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