但是没人能保证这项研究结论适用于人，位于罗利市的北卡罗莱纳州立大学的大卫·多尔曼指出。

But no one's sure how well such studies model what happens in people, points out David Dorman of North Carolina State University in Raleigh.

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国家警察局的发言人里奥纳多·艾斯潘那告诉当地媒体迪克先生在星期一袭击发生前见过一些持枪者。

National Police spokesman Leonardo Espina told local media that Mr. Dicay had been seen with some of the gunmen earlier on Monday, before the assault.

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2008年初，现在竞选加州州长的惠特曼女士就已经把公司命脉转手给钦点继承人约翰·多纳霍，可见把握时机胜过深思熟虑。

Showing better timing than foresight, Ms Whitman (who is now running for governor of California) had already handed over the REINS to her anointed successor, John Donahoe, in early 2008.

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