Comparison with a control group of meat-eating dogs would render this study even more meaningful.

如果和食肉的对照组宠物狗进行比较，这个调查将会更有意义。

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In comparison, chemo can give newly diagnosed lung cancer patients an extra two to three months of life, says study co-author Thomas Lynch, director of the Yale cancer Center.

托马斯·林奇，耶鲁大学癌症研究中心主任，也是上述研究报告的撰写人之一谈到，相比之下，化疗可以让早期肺癌患者多活两到三个月。

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However, you might benefit from a comparison of your study habits to the tips presented here.

但是无论如何，你都可以通过比较你自己的学习习惯和下面这些建议来获得一些有益的东西。

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The study does not allow a direct comparison of men and women's stress coping mechanisms, because only men were included.

MSN: Stress turns guys into social butterflies

In QSR Magazine's annual Drive-Thru Study, the only comprehensive industry comparison of customer service at fast-food chains, other restaurants have consistently outperformed McDonald's in those areas.

WSJ: McDonald's Tackles Repair of 'Broken' Service

One examined 29 patients with Crohn's disease and found that after six months, 21 were considered remitted. (There wasn't a control group for comparison.) The other was study of 54 patients with ulcerative colitis.

WSJ: In a Squeaky-Clean World, a Worm Might Help Fight Disease