Development teams can take advantage of a wide range of performance-enhancing tools available for Ajax applications.

目前存在大量可用于Ajax应用程序的性能提升工具，开发团队可以利用这一优势。

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But Armstrong, who has never tested positive for performance-enhancing drugs, has consistently denied the allegations.

而阿姆斯特朗则一直否认此项对他的指控，在药检中，他也从未被检测出呈阳性。

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At the same time, a small but growing number of people have begun to suggest that performance-enhancing drugs should be legalized.

同时，少数但越来越多的人开始建议将部分兴奋剂合法化。

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He opposed admitting players to the Hall of Fame if they had used performance-enhancing drugs.

VOA: special.2011.01.09

On another subject he said he has never taken performance-enhancing drugs.

VOA: special.2010.04.10

And his critics also said the games had become over-commercialized and riddled with performance-enhancing drugs during his leadership.

VOA: standard.2010.04.21

The public is becoming immune to the constant performance-enhancing-drug headlines, with the exception of those concerning Bonds.

FORBES: Kurt Badenhausen On The Business Of Sports

In June, USADA accused Mr. Armstrong and others of conspiring to cheat by using performance-enhancing drugs.

WSJ: Lance Armstrong Suit Against USADA Is Dismissed

Armstrong got to say his piece and also give his portfolio a little performance-enhancing boost.

FORBES: Lance Armstrong's Trolling Juices Mobli's Traffic