1893-1976 1904- 1904-1997 20thcentury china chinese civilization communism deng history mlcsc95/246(d) philosophy philosophydeng philosophymao philosophy邓小平 politicalandsocialviewsmao politicalandsocialviews毛泽东 politicsandgovernment socialism thoughtandthinking viewsoneconomicsmao viewsoneconomics毛泽东 xiaoping zedong 邓小平