题目内容
Course objectiveBuilding your ability to 1)___________________
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Course focus – Developing skillsLanguage skillsIntercultural competenceLearning about _____________, reflecting on your own culture, and communicating with people from other cultures appropriately and effectively
Course focus – Developing skillsCritical thinking skillsSeeing things in an open-minded way, and _______________ from different angles.
以下（）指的是边际效用。
若消费者张某只准备买两种商品X和Y，X的价格为10，Y的价格为2。若张某买了7个单位X和3个单位Y，所获得的边际效用值分别为30个单位和20个单位，则（）。
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