The brain almost always has a plan B, even when deciding which hand to use to press a button, a new study finds.

一项新的研究表明，即使是在决定使用哪只手按下按钮的问题上，大脑也几乎总有一个备用方案。

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An ADS-B based system, on the other hand, would listen for position reports broadcast by the aircraft.

从另一方面来说基于ADS - B技术的系统会准确记录回复的飞行器位置传播信号报告。

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The effect is more marked on the right hand than the left, claims the study reported in the Proceedings of the Royal Society B.

这种效果在右手的体现甚于左手，发表在皇家社会进步期刊(一份生物类期刊)的此项报告称。

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On the other hand, Company B, the recipient of the government largesse, is Massachusetts- based A123 Systems.

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There are, of course, some painfully obvious reasons why this is: person A puts a printed document in person B's hand with little or no effort on either person's part, and, well, it just works.

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On the other hand, with roughly 60 B-2s, the U.S. could station 20 at three bases around the world (Guam, Whiteman AFB and Diego Garcia) and be able to reach any target anywhere on the planet within hours.

CENTERFORSECURITYPOLICY: Center For Security Policy