Thus the negative group velocity is simply an apparent velocity as we shall show from the study of energy flow.

因此，负群速度只是表观速度，能流的研究结果也证明了这一点。

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HOMA-IS and HOMA-IR were successively reduced in antibody negative group, single positive group and double positive group(P<0.001).

IS指数及HOMA-IR指数在抗体阴性组、抗体单阳性组及双阳性组依次降低，差异有显著性（P<0.001）。

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Method in HBVM positive group and negative group treated with rifapentine or rifampicin, liver function injury were observed before and after treatment.

方法对HBVM阳性和阴性肺结核病人分别用利福喷丁和利福平治疗，观察治疗前后肝功能损害情况。

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Under the L group we've got negative, anxious, unsettled.

组下我们有,消极,焦虑,不安

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The finding is that if your race or your group has a negative stereotype associated with it in any particular domain, being reminded of it serves as a stereotype threat and hence damages your performance in all sorts of domains.

他们发现如果你的种族或群体,跟一个消极的刻板印象有关,随便在什么领域上，如果别人在你面前提前，就足以构成刻板印象威胁,从而影响你在这个领域上的表现。

耶鲁公开课 - 心理学导论课程节选

Leigh Caldwell points out that anyone in the bottom 20% has more wealth than the bottom 20% combined, since they all have negative wealth, and no individual negative number in a group can be less than the sum of a whole group of negative numbers.

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The stock looks attractive given a trailing 12-month ROE of 11% compared with its peer group average of negative 2.6%.

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"We believe anything short of Tribune selling itself at a significant premium, which is highly unlikely in our opinion, will serve as a negative catalyst for the newspaper group and for Tribune, " Huber wrote in a research note.

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