Moreover, the effective treatment of recurrent and drug-resistant tuberculosis patients in the treatment program did not receive in-depth study and optimization.

而且，有效治疗复发和耐药肺结核病人的治疗方案没有得到深入研究和优化。

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This paper takes three control targets in major water conservancy construction management as the objects of study and optimization a mathematical model is established.

本文以水利工程施工管理中的三大控制目标为研究对象，以三者的优化为目标，建立了数学模型。

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Social media complements and augments other forms of marketing such as E-mail marketing, search engine optimization and direct marketing, the study said.

研究还指出，社交媒体能够补充并增强其他营销方式的效果，如电子邮件营销、搜索引擎优化，以及直接营销。

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