第1题: [单项选择]严格定义的方法有假设前提,下列有哪些假设属于它 Ⅰ.所有需求都能被预先定义 Ⅱ.周期各阶段都固定正确 Ⅲ.大量的反复是不可避免的 Ⅳ.有快速的系统建造工具 A. Ⅰ B. Ⅱ C. Ⅰ和Ⅱ D. Ⅲ和Ⅳ 参考答案:C 答案解析:[解析] 严格定义的假设前提包括所有需求都可以预先定义,一般来说与项目参加者的经验有关,使系统需求真正吻合是一件艰巨的工作。严格定义也要生命周期各阶段能过程化地固定下来,严格定义才能严格正确,后面严格
第5题: [单项选择]They are talking about the people and the things ______ they saw on their way home. A. which B. that C. those D. who 参考答案:B 答案解析:[解析] 在定语从句中,如果先行词既有人又有物时,用关系代词that,而不用which或who。例如:The people and the things that were lost in this