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Which company is Guiyang doing Baidu's annual promotion?

Baidu promotion has no annual service. Baidu search promotion is divided into two parts, one is SEM bidding ranking, and the other is seo search engine optimization. All Baidu's annual promotion is seo search engine optimization promotion, and some SEO network companies do monthly, quarterly or annual ways to optimize corporate websites. Guiyang, this well-done hurricane network is not bad.