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【单选题】
病毒与黑客成了网络安全的最大杀手,下列不属于信息安全措施的是A.
安装防火墙软件
B.
经常重装计算机系统
C.
经常更换资金帐户密码
D.
不要轻意点击陌生网友发来的 链接
拍照语音搜题，微信中搜索"皮皮学"使用
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皮皮学刷刷变学霸
举一反三
【单选题】In the following two hours he was _____ the performance, because it turned out to be as wonderful as he had expected. [ ]
A.
tired of
B.
absorbed in
C.
annoyed with
D.
disappointed with
【单选题】In the following two hours he was _____ the performance, because it turned out to be as wonderful as he had expected. [ ]
A.
tired of
B.
absorbed in
C.
annoyed with
D.
concerned about
【单选题】In the process of purling the stories on the Internet, ______ .
A.
each student was responsible for one story
B.
computer students first had to decide whether a story was good or not
C.
webpages were created by Dreamweaver.
D.
Irene had elementary students pick the webpages that they liked best
【单选题】Which of the following is the consequence brought out by the introduction of Kodak?
A.
The number of professional photographers increased quickly.
B.
Family albums became out of date.
C.
Photography became much easier than ever before.
D.
Camera clubs and associations flourished.
【简答题】At the end of the novel, the author writes ' even an invisible man has a socially responsible role to play. . , who knows but that, on the lower frequencies, I speak for you?'. What does 'you' refer t...
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