慧学（39）：精读博士论文代销模式下平台广告和推广策略（2）
In this issue, the editor will introduce the platform advertising and targeted promotion strategies under the agency sales model (
博士论文代销
慧学（36）：精读博士论文代销模式下平台广告与推广策略（1）
In this issue, the editor will introduce the platform advertising and targeted promotion strategies under the agency sales model (