Some of the fixes included with sp - 1 have been previously released as separate updates . this service pack combines them into one integrated package , and it includes a number of other changes designed to improve the reliability and performance of your office xp programs 尽管其中部分修补程序包先前已作为单独的更新被发布，但sp - 1不仅将这些已发布的修补程序包合并至一个集成软件包，而且在其中增加了许多用于改善office xp应用程序的可靠性和性能的其他更新。
