President Xi Jinping delivered a speech at _______ on September 7, 2013. It was in that speech that President Xi Jinping proposed to build “The Silk Road Economic Belt” for the first time, aiming at seeking common prosperity and development.
A.
Peking University北京大学
B.
Nazarbayev University 纳扎尔巴耶夫大学
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皮皮学刷刷变学霸
举一反三
【单选题】If a small change in price will lead to an infinite change in the quantity demanded, then the demand curve is: