English training; Customer Perceived Service quality; Interaction quality; Service quality gap.
英语培训；顾客感知服务质量；交互质量；服务质量差距。
High customer-perceived service quality can be obtained high service productivity.
高的顾客感知服务质量才有可能得到高的服务生产率。
High customer-perceived service quality can be obtained high service productivity.
高的顾客感知服务质量才有可能得到高的服务生产率。
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