对新中国成立前后中美关系调整失败的原因进行了分析。美国对华政策目标与中国的民族利益尖锐对立，其在对华具体政策上又频频失误，国际冷战的格局进一步对中美关系的改善造成不良影响，美国国内的反共反华浪潮严重影响了美国政府的决策，这些因素，导致中美双方改善关系的努力彻底失败，最终在朝鲜战场上兵戎相向。%The cause of unsucessful adjustment of Sino-American relationship upon liberation is analysed. The purpose of American policy towards China is opposite acutely to Chinese national benefit. American often slipped up in specific policies to China. The international cold war situation escalated the Sino-American relationship. The domestic anti-communist and anti-China tide in America severely affected the decision-making of American government. These factors led to the failure of efforts to improve Sino-American relationship. The war broke out at last between China and America in Korea battlefield.
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