Scientized thought of Chinese art in the first half of the 20th century varieties and patterns of machine silk weaving in the first half of the 20th century Research on the history of Chinese art in the English world of the 20th century Philosophical thought in Russia in the 2nd half of the 20th century Research on the history of Chinese sociology of law in the first half of the 20th century prospect of women's art movement in the first half of the 20th century The development of Marxism in western countries 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 research on Chinese nationalism trend in the first half in the 20th century modern and contemporary Chinese art since the dawn of the 20th century