Most politicians recognize the link between investment in science and national economic strength, but support for research funding has been unsteady.

大多数政治家认识到投资科学和国家经济实力的关系，但对研究资金的投入一直不稳定。

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A link to this support document is available in the Resources section of this article.

对该支持文件的链接可以从本文的参考资料部分中得到。

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It offers ways to support conditional processing, automatic linking and link checking, and a powerful reuse model.

它提供了一种支持条件处理、自动化链接和链接检查的方法，还有一个强大的复用模型。

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Online sites are required to verify identities and link and provide support to help services for addicts.

BBC: Nevada opens doors on first US-based online casino

If your parents would like a little more than a Facebook photo gallery as a souvenir, or Instagram just isn't nostalgic enough, you can hit the source link to show support and make the Instant Lab real.

ENGADGET: Insert Coin: Impossible Instant Lab makes iPhone photos tangible

It's worth asking ourselves why we keep returning to video games despite the lack of evidence to support its link to violence.

CNN: Video games didn't cause Newtown rampage