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第1题

Maintaining web security is for China. 【A】：easy 【B】：a piece of cake 【C】：difficult
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第2题

There areto maintain cyberspace security. 【A】：no unified international regulations 【B】：unified international regulatio
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第3题

Cyber security has always been a serious issue as the internet industry is ever growing.Nowadays,people can easily conne
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第4题

What do you thinksolve the problem？ 【A】：you can do 【B】：can you do 【C】：you can do to
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