Do I need to take preventive drugs?, there's another set of simple rules in the new book the Decision Tree, by Thomas Goetz.

我是否该服用预防药？在汤玛斯·戈茨的新书《决策树》中，另有一套简单规则可依循。

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The paper introduces the symptoms, rules and preventive technologies of several common diseases of cucumbers, hoping to be of technological help for the identification and prevention of the diseases.

介绍了黄瓜常见的几种病虫害的发病症状、发生规律及防治技术，以期对黄瓜病虫害的识别与防治提供技术帮助。

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To grasp the coal seam gas control content and gas gush rules can efficiently stop gas, avoid gas accident and accumulate gas preventive measures.

掌握各煤层瓦斯含量及瓦斯涌出规律，为有效地采取可靠措施进行瓦斯治理积累了经验，对保证生产杜绝瓦斯事故起到了积极的作用。

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Health and Human Services Secretary Kathleen Sebelius said the new rules would provide "women across the nation with coverage of recommended preventive care at no cost, while respecting religious concerns".

BBC: White House unveils new contraception opt-out

Those are just a few of the reasons why President Obama has made improving access to preventive care a priority from his first day in office and why we released new rules requiring all new private health insurance plans with plan years beginning on or after September 23, 2010 to cover recommended preventive services without cost-sharing when delivered by a network provider.

WHITEHOUSE: Blog Posts Related to the African American Community