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【单选题】
Which of the following is NOT true of security attacks?A.
Employees will keep Up with security polices and awareness if they are highly-trained.
B.
The rate of security attacks appears faster than the growth of the Internet.
C.
One's computer system will never be secure.
D.
Vulnerabilities can go through phones, wireless devices, and network appliances.
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【简答题】肯德基是一家出售......的......公司,总部位于......。
【简答题】一铅垂放置的圆柱被正垂面所切,截交线为 ________ 。椭圆的正面投影在主视图中积聚为一 ________ ,其水平投影在俯视图中与圆柱面的投影重合为 ________ ,椭圆的侧面投影在左视图中是类似形,仍为 ________ 。
【单选题】— Will Christmas come soon? — _______.
A.
Yes, it is.
B.
I don’t think so.
C.
Yes, it will be Christmas next week.
D.
I love Christmas.
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