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人教版九年级下册英语知识与能力训练Unit2答案
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反馈参考答案：
举一反三
【简答题】Digital cell phones offer more security, but the is that they have less power.
【单选题】实用程序完成一些与管理计算机系统资源及文件有关的任务,()不属于实用程序。
A.
Windows
B.
Windows 优化大师
C.
备份程序
D.
WinRAR压缩软件
【单选题】The Internet, cell phones, palmtop computers and other digital technology allows one to quickly gain______to a variety of information.
A.
right
B.
privilege
C.
access
D.
entrance
【单选题】( ) is bullying that takes place over digital devices like cell phones, computers, and tablets.
A.
Pavilion
B.
Cyberbullying
C.
Self-esteem
D.
Peer
【单选题】_______ in progress, conference participants must turn off their cell phones and digital cameras.
A.
While
B.
Although
C.
Ever
D.
During
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