1948年底至1949年初,内外交困的南京国民党政府为摆脱困境,进行了一系列重要人事变动。首先,1948年12月20日,孙科接替翁文灏组阁,出任行政院长;紧接着,1949年1月21日,蒋介石在内外压力下被迫宣布再次下野,李宗仁出任代总统。但这并没有从根本上解决当时国民党政府所面临的困境,相反却出现了以李宗仁为首 From the end of 1948 to early 1949, the Nanjing Kuomintang government, both internally and externally besieged, carried out a series of important personnel changes to get out of their predicament. First, on December 20, 1948, Sun Ke succeeded Weng Wenhao as the cabinet chief and served as the chief executive. On January 21, 1949, Chiang Kai-shek was forced to declare another underdog, under pressure from both inside and outside. Li Tsung-jen became the acting president. However, this did not fundamentally solve the predicament faced by the Kuomintang government at that time. On the contrary, it was led by Li Tsung-jen