若一作者有多篇你想引用的文献，只需用逗号来区隔作品的发表年份（最早到最晚依序排列）。若多篇文献在同一年内发表，请在年份后面加上a、b、c……等标注。（按：abc的使用需与参考文献部分有所对应，而这些文献的编排以标题名称的字母来决定。） Developed by John Presper Eckert and John W. Mauchly, ENIAC, not like the Colossus and Mark I, was a general-objective computer that computed at speeds one,000 ... https://webookmarks.com/story14324081/the-5-second-trick-for-%E4%BB%A3%E5%86%99essay