第4题: [单项选择]A. To ask for his father’s friends’ help. B. To accept assistance from his father’s friends. C. To find housing and employment on his own. D. To find a teaching job at a university. 参考答案:C 答案解析:[听力原文] W: I understand that your father has several friends at that university. They might be abl
第29题: [单项选择]关于计算机技术指标的描述中,正确的是( )。 A. 平均无故障时间MTBF指多长时间系统发生一次故障 B. 奔腾芯片是32位的,双核奔腾芯片是64位的 C. 浮点指令的平均执行速度单位是MIPS D. 存储容量的1KB通常代表1000字节 参考答案:A 答案解析:[解析] MTBF为平均无故障时间,是Mean Time Between Failures的缩写,指多长时问系统发生一次故障,所以选项A)是正确的。选项B),奔腾芯片是32位的,而双核奔腾芯片也足32