在二战之后的国际关系史上,很少有事件能像20世纪70年代早期美国向中国开放那样对世界局势的发展产生深远影响。无论是当时的分析家,还是后来的历史学家,都极力强调中美友好对两国和外部世界有着重要的意义。例如,沃尔特·伊萨克森(Walter Isaacson)在他写的基辛格(Kissinger)传记中这样令人信服地写到:“突然间,决定了世界秩序长达25年之久的东西方之间两极权力平 In the post-World War II history of international relations, few events have had a profound impact on the development of the world situation as the United States opened its doors to China in the early 1970s. Neither the analyst at the time nor the historian later tried to emphasize that the friendship between China and the United States is of great significance to the two countries and the outside world. For example, Walter Isaacson convincingly wrote in his biography of Kissinger: ”Suddenly, between the East and the West, which set the world order for as long as 25 years, Poles power leveling