When disease control efforts are stepped up, especially through the mass administration of medicines, causative agents are put under enormous stress, which is expressed as selective pressure.

当疾病控制努力逐步加强，尤其是通过大规模施用药物来控制疾病时，病原体被置于巨大的选择压力之下。

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Conclusion: Administration of Penehyclidine Hydrochloride which is selective antagonist on receptor-M as Premedication is more effective and better than Atropine in abdominal surgery.

结论：选择性新型M -受体拮抗剂长托宁用于腹部外科手术术前用药临床效果优于阿托品。

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Conclusion Local administration of capsaicin can produce selective destruction of unmyelinated fibers in primary afferent nerves, and can reduce the levels of SP in regions of CNV.

结论辣椒素局部神经干给药能选择性毁损初级传入神经中的无髓纤维，减少CNV区SP含量。

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Mr. Williams said he called the mayor to apologize but stands by his position that the NYPD is misusing the tactic and that the administration is using "spin and selective statistics" to sell stop and frisk as a life-saving tool.

WSJ: Mayor Celebrates His Achievements

Last but not least, there are clear signs that the administration is fulfilling its campaign promise to be more selective about where to engage its troops and its attention.

ECONOMIST: Working out the world

Administration officials also have complained that congressional Republicans in recent days had been leaking selective excerpts from the emails to buttress their argument that the talking points were manipulated for political purposes.

WSJ: White House Releases Benghazi Emails