从营销手段上来讲，主要从几个方面努力：首先要集中火力，选准目标市场；
Speaking from the marketing, mainly from several aspects: First, to concentrate firepower, selecting the right target market;
主要从几个主要的模块进行管理，然后确定下来各方面的相关统计资料。
Mainly from several major management module, and then determined in the context of statistical information.
本文主要从以下几个方面对该问题进行讨论：一、对确定性及知识确定性的概念做了一番梳理。
This paper discussed this question mainly from the following aspects: First, it teased the concept of certainty and certainty of knowledge.
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