并列题名：Historiography communication between China and America in the first half of the 20th century Historiography communication between China and America in the first half of the 20th century 并列题名：Research on localization of Marxist economic thought in China in the first half of the 20th century The development of Marxism in western countries in the first half of the 20th century Scientized thought of Chinese art in the first half of the 20th century 并列题名：Strategic collaboration between China and Canada in the 21st century research on Chinese nationalism trend in the first half in the 20th century varieties and patterns of machine silk weaving in the first half of the 20th century 并列题名：Research on the history of Chinese sociology of law in the first half of the 20th century 并列正题名：Study of American southern culture in the first half of 20th century