我已经选择了导师，订单正在完成中，但是突然发现我的要求需要更改，怎么办呢？ The availability curve can have an upward movement along the curve because far more will probably be provided at the higher price. As the value enhances the amount demanded decreases until the industry reaches a new equilibrium concerning Qx and Pr the place there is not any additional tendency http://report36789.blogdon.net/top-latest-five-report-urban-news-27940613