:毛泽东主张向西方发达国家学习 ,不失时宜地争取外部力量的支持 ,对美国和苏联等发达国家开放 ,允许外国的资本家到中国投资 ,发展经济。这些对外开放的理论和实践对中国革命的胜利起到了重要的积极作用 : Mao Zedong advocated learning from developed countries in the West, gaining timely support for external forces, opening up the United States and other developed countries such as the Soviet Union, allowing foreign capitalists to invest in China and develop their economy. These theories and practices of opening to the outside world have played an important and positive role in the victory of the Chinese revolution