题目内容
航空公司有时会推出低于平均价格的特价借票，例如星期六夜晚特价机票或最后一分钟特价机票。这种行为使用了边际思维。
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Writing ：Directions: SiHai fitness center is looking for an intern to join its team. Write an advertisement for an intern. Remember to inclde:the wage;the work time;the skills needed;benefits of doing the internship;contact information.LOOKING FOR PERSONAL TRAINERSCome and work at_______1______!Why not spend your time helping people to achieve their fitness goals?Skills needed:You’ll:Hours of work: _________3___________Salary: _________4___________Experience is not required as training will be given.Contact__________5____________.备选项A.working as part of a teamB.$10 per hourC.Mark@gofitnessfor more information.D.our fitness centerE.3 days a week for six months
完全自由市场经济制度，土地和资本归国家所有。
完全计划经济制度，生产什么是由政府决定。
混合经济制度，以市场调节为基础，又有政府适当干预制度。
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