Network marketing is also referred to as Multilevel marketing (MLM) or Cooperative marketing.

网络营销也称为传销(传销)或合作社销售。

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The integrated model can simplify administration of privileges, and is appropriate for multilevel relation database system which has many users or complex security levels.

该模型方便了管理员的权限管理，适合用户较多，安全层次比较复杂的多级关系数据库系统。

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For modeling the multilevel few sample or irregular data, the accumulated multilevel statistical models of multivariate full model was built on ordinary multilevel statistical models.

为了解决多层的少样本或无规则数据的建模问题，在一般多层统计模型的基础上提出了多变量整体模式的累加多层统计模型。

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Moreover, fellow multilevel marketing companies Mary Kay Cosmetics or ViSalus, another purveyor of weight loss and nutritional supplements, have both been the subject of scathing take-downs by journalists within the past few months.

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Suppliers found to manufacture goods bound for Wal-Mart in multilevel buildings shared with other factories or shops are now deemed high risk and are removed from the retailer's list of authorized suppliers, the company said in a letter to suppliers in January.

WSJ: Before Bangladesh Collapse, Some Clothing Retailers Fled Risk