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 高等继续教育 / 计算机统考
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5、在以下人为的恶意攻击行为中,属于主动攻击的是________。
A.截获数据包
B.数据窃听
C.数据流分析
D.修改数据
  积分
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  • 45、In the United States, it is not customary to telephone someone very early in the morning. If you telephone him early in the day, while he is shaving or having breakfast, the time of the call shows that the matter is very important and requires immediate attention. The same meaning is attached to telephone calls made after 11:00 pm. If someone receives a call during sleeping hours, he assumes it's a matter of life or death. The time chosen for the call communicates its importance. In social life, time plays a very important part. In the U.S.A. guests tend to feel they are not highly regarded if the invitation to a dinner party is extended only three or four days before the party date. But it is not true in all countries. In other areas of the world, it may be considered foolish to make an appointment too far in advance because plans which are made for a date more than a week away tend to be forgotten. The meaning of time differs in different parts of the world. Thus, misunderstandings arise between people from different cultures that treat time differently. Promptness is valued highly in American life, for example. If people are not prompt, they may be regarded as impolite or not fully responsible. In the U.S. no one would think of keeping a business associate waiting for an hour, it would be too impolite. A person, who is 5 minutes late, will say a few words of explanation, though perhaps he will not complete the sentence.统考英语阅读理解
  • 水准尺红面正确的起始读数为( )m。(A) 4.687 (B) 4.535 (C) 4.325 (D) 4.338建筑工程测量
  • 37、China is _ _ _ _ _ _ _ the Great Wall. A.on B.famous C.famous for D.famous as统考英语词汇与语法
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  • 2012年11月29日,习近平在参观《复兴之路》展览时首次提出中国梦,并引用三句诗诠释了近代以来中国人民寻梦、追梦、圆梦的历史进程。中华民族的明天,“( )”。 毛泽东思想和中国特色社会主义理论体系概论
  • 2、主张把教育心理学作为一门独立科学的分支来进行研究,反对把普通心理学的成果简单的移植到教育心理学,并创立了心理学的“文化—历史发展理论”,并从这一理论出发提出了“最近发展区”的观点,他是前苏联著名的心理学家( )。(A) 维果斯基 (B) 布隆斯基 (C) 鲁宾斯坦 (D) 列昂节夫教育心理学