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27、下面属于主动攻击的技术手段是______。
A.截取数据
B.密码破译
C.拒绝服务
D.流量分析
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  • 33、在Excel 2010中,作为工作表的数据源发生变化时,相应的图表______。 A.不受任何影响 B.需要人为修改 C.不跟随变化 D.自动跟随变化计算机统考
  • 46、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
  • document.write($wapper.api.getDisplayFormat("(A)(B)(C)(D)[参考答案:B]  分值:4"));(A)(B)(C)(D)[参考答案:B]  分值:4showAnswer("lemonysoft_item_jsfc7phuho_45","","3");得分: 分段鹏飞批改于2020年6月16日 21点36分 (A)(B)(C)(D)[参考答案:B]  分值:4高等数学
  • 下列哪些人有资格可以独立行使民事诉讼权利( )。A、精神病患者及10周岁以下的儿童 B、年满10周岁但未满16周岁的儿童C、年满16周岁且有劳动收入的公民 D、年满18周岁且智力正常的公民民事诉讼法学
  • 在Internet上,能让许多用户在一起交流信息的服务是_____。 计算机应用基础
  • 树突状细胞有别于其他APC的特点是 医学免疫学