The neurons cultivated at Johns Hopkins—unlike those culled from tumors are not cancerous, and accordingly are much more valuable as research tools.

在约翰霍普金斯大学培养的神经元不同于那些从肿瘤中挑选出来的神经元，它们并没有癌变，因此作为研究工具更具价值。

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The research tools page lists resources that can be used in research.

研究工具网页列出研究中可使用的资源。

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A variety of keyword research tools can give you insight into what your audience is looking for.

有多种关键词分析工具能够帮助你清楚了解用户在寻找什么。

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She says they are still considered research tools in the United States, and not used as much as in places like Britain and Japan.

VOA: special.2009.12.17

Online consumers are smarter and empowered with more research tools today than ever before.

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Fortunately, there are many online research tools that can help you without breaking the bank.

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You can even use these research tools to conduct your own personal brand and career development research.

FORBES: How to Learn What People Really Think