“Zero and negative tour expense”的概念、定义、翻译、参考文献-科学参考

单词	Zero and negative tour expense
释义	Zero and negative tour expense Encyclopedia 管理学旅行社释 Zero and negative tour expense零负团费地接社不向组团社收取旅游消费者在旅游目的地的接待费用，或者倒向组团社支付一定的费用，通过旅游消费者在旅游目的地的购物、自费项目等收入来弥补团费差失并获取利润的一种经营模式。
随便看	criterion sampling criterion via Wronski determinant critesistor crith critical critical aggregation concentration critical aggregation concentration (cac; CAC) critical angle critical angle refractometry critical angular momentum critical angular momentum for fusion reaction critical argument critical assembly critical band critical behavior critical bifurcation critical blowdown ratio critical book review critical bound critical branching process Critical Care Medicine，Intensive Care Medicine critical case critical cavitation Critical chain Critical Chain Method

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