·2,447,543篇论文数据，部分数据来源于NoteExpress
The customer report was only based on customer Satisfaction Survey, the delivery performance was not analyzed, such as premium freight and delivered product PPM.
顾客满意度报告仅仅基于顾客满意度调查表，实际的交付业绩没有分析，如超额运费，交付产品的PPM。
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