一些进程相互合作共同完成一项任务，进程之间的这种直接的协同工作关系称为 【1】 。 发布时间：2017-07-15 22:39 │ 来源：www.tikuol.com 题型：填空题 问题： 一些进程相互合作共同完成一项任务，进程之间的这种直接的协同工作关系称为 【1】 。
题型：填空题 They ______ on the program for almost one week before I joined them, and now we _______ on it as no good results have come out so far.A. had been working; are still working B. had worked; were still workingC. have been working; have worked D. have worked; are still working 查看答案