第22题: [单项选择]What does the woman mean A. She wants to meet him on Friday. B. She wants to meet him tomorrow night. C. She will be busy every day this week. 参考答案:A 答案解析:[听力原文] M: Let’s have dinner together some time this week--say , tomorrow night W: I’m busy th
参考答案:a great deal of time and energy would have been saved 答案解析:[解析] 本题考点为虚拟条件句的时态问题。if引导的从句用过去完成时,根据对应原则,主句谓语应该采用would have done的结构,表示“本可以…本应该…(实际上却没有做到)”,由于句中没有明确
第35题: [单项选择]Cache的地址映射中______比较多的采用“按内容寻址”的相联存储器来实现。 A. 直接映射 B. 全相联映射 C. 组相联映射 D. 段相联映射 参考答案:B 答案解析:[解析] 在全相联映射方式下,访问Cache时主存字块标记需要和Cache的全部“标记”位进行比较,采用传统方式比较会严重影响效率,故常采用“按内容寻址”的相联存储器来实现比较合适。