【判断题】【消耗次数:1】
目前所有的光盘驱动器只能读而不能写。 ( )
正确
错误
参考答案:
复制
纠错
相关题目
【判断题】 CPU对RAM只能读不能写。
①  正确
②  错误
【判断题】 光存储系统由光盘驱动器和光盘盘片组成,它是利用电磁原理进行工作的。
①  正确
②  错误
【判断题】 各种类型的光盘在被光盘驱动器读取后,都会形成二进制数字电信号。
①  正确
②  错误
【单选题】 CD-ROM光盘在CD-ROM驱动器上___
①  只能读出
②  不能写入但能修改
③  只能写入
④  能读能写
【单选题】 关于加密驱动器(或分区),以下描述错误的是( )
①  加密驱动器会多占用存储空间
②  加密驱动器后,该分区只有当前账户登录后才能使用
③  加密驱动器可以将密钥保存为文件
④  加密驱动器后,该分区就不能去掉加密
【判断题】 软盘处于写保护状态,是指软盘内的数据只能写入不能读出的状态。
①  正确
②  错误
【判断题】 如果事务T获得了数据项Q上的排它锁,则T对Q只能读不能写。
①  正确
②  错误
【单选题】 文件的存取控制属性中,只读的含义是指该文件只能读而不能____。
①  修改
②  删除
③  复制
④  移动
【单选题】 在Windows中,双击驱动器图标的作用是__________。
①  查看硬盘所存的文件和文件夹
②  备份文件
③  格式化磁盘
④  检查磁盘驱动器
【判断题】 磁盘驱动器属于外部设备。
①  正确
②  错误
随机题目
【单选题】 He did me a ____ turn by lending me ten pounds.
①  good
②  nice
③  fine
④  pretty
【单选题】 The farmer said all their hopes _____ the support of the local government.
①  decided on
②  rested on
③  based on
④  founded on
【单选题】 The millions of calculations involved, ____ by hand, would have lost all practical value by the time they were finished.
①  had they been done
②  they had been done
③  having been done
④  they were done
【单选题】 Once our chickens started laying eggs, we had such a ____ of eggs that we were giving many away to our neighbors.
①  output
②  surplus
③  production
④  plenty
【单选题】 Most importantly, such an experience helps ____ a heightened sensitivity to other cultures and will bring about a greater appreciation of one’s own culture as well.
①  coach
②  forsake
③  foster
④  censor
【单选题】 She didn’ t come to the party last Sunday._____, she must have made the party more exciting.
①  If she came
②  Would she come
③  Had she come Did she come
【单选题】 Some companies have introduced flexible working time with less emphasis on pressure ____.
①  than more on efficiency
②  and more on efficiency
③  and more efficiency
④  than efficiency
【单选题】 Tom ____ his new job with confidence.
①  set out
②  set off
③  set up
④  set about
【单选题】 In some cases, your instructor may tell you the topics ____ or may give you a choice of topics to write about.
①  in advance
②  ahead of
③  above al
④  right away
【单选题】 Nancy was surprised that they have ____. They seemed to be a happy couple.
①  split up
②  broken down
③  fallen through
④  knocked out