Study on the theory and practice of the standardization strategy Study on the theory and practice of technical barriers to trade Study on the theory and practice of void marriage system Study on the theory and practice of strict administration of the party Study on the theory and practice of tort cases in question Study on the theory and practice of national central city Study on the theory and practice of the new normal state of China's economy Studies on the theory and practice of SME's outward internationalization Study on the theory and practice of Austro-Marxism Study on the theory and practice of journalism in university