【单选题】【消耗次数:1】
She_______ the door before she goes away.
had locked
is locking
has locked
was locking
参考答案:
复制
纠错
相关题目
【单选题】 She ________ the door before she goes away.
①  had locked
②  is locking
③  has locked
④  was locking
【单选题】 2.She the door before she goes away.
①  had locked
②  is locking
③  has locked
④  was locking
【单选题】 She ___ the door before she goes away.
①  had locked
②  is locking
③  has locked
④  was locking
【单选题】 Before she left to have a holiday, she_______ hard.
①  worked
②  has worked
③  had worked
【单选题】 She had made many ( ) into the quality of the computer before buying one.
①  inquiry
②  inquiries
③  search
④  research
【判断题】 Has she been listening? Yes, she has./ No, she hasn’t.
①  正确
②  错误
【单选题】 She has breakfast at seven everyday, _____?
①  has she
②  hasn’ t she
③  does she
④  doesn’ t she
【单选题】 She was so _____ in her job that she didn’t hear someone knocking at the door.
①  attracted
②  drawn
③  absorbed
④  concentrated
【单选题】 She told me she [填空] slept well before the flight.
①  is not
②  hasnt
③  hadn’t
④  wont
【单选题】 She goes to the hairdresser’s [填空]a month.
①  one
②  once
③  a
④  two times
随机题目
【判断题】 I/O设备用以完成信息传输任务
①  正确
②  错误
【判断题】 操作系统随着计算机技术的出现而产生
①  正确
②  错误
【判断题】 计算机网络要求计算机是独立自治的
①  正确
②  错误
【判断题】 单CPU系统可以实现物理并行
①  正确
②  错误
【判断题】 批处理系统中采用多道程序设计技术,形成多道批处理系统
①  正确
②  错误
【判断题】 分时操作系统采用时间片轮转的办法,使一台计算机同时为多个终端用户服务。
①  正确
②  错误
【单选题】 要求在规定的时间内对外界的请求必须给予及时响应的OS是?
①  多用户分时系统
②  实时系统
③  批处理系统时间
④  网络操作系统
【单选题】 单处理机计算机系统中,以下哪项是并行操作的?
①  处理机操作和通道操作是并行的
②  程序与程序
③  主程序与子程序
④  用户程序与操作系统程序
【单选题】 与计算机硬件关系最密切的软件是?
①  编译程序
②  数据库管理程序
③  游戏程序
④  操作系统
【单选题】 如果分时操作系统的时间片一定,那么哪一项会导致相应时间越长?
①  用户数越少
②  用户数越多
③  内存越小
④  内存越大