由于北美作业代写的具体类型较多，难度不一，我们需要通过上传作业，导师确认之后才能给出报价。系统上传作业都是免费的，导师报价都是可以自由选择，确认好导师，会先提供付款方式，系统会预扣，等收到答案确认满意之后，系统才会将费用支付给导师。 Client and producer surplus are both labelled over the diagram. Shopper surplus is located previously mentioned the equilibrium line, which is the world o... https://social40.com/story12837013/detailed-notes-on-%E4%BB%A3%E5%86%99assignment