【单选题】【消耗次数:1】
木马病毒的主要危害是(  )。
潜伏性
隐蔽性
传染性
内外勾结窃取信息及破坏系统
参考答案:
复制
纠错
相关题目
【单选题】 木马病毒的主要危害是____。
①  潜伏性
②  隐蔽性
③  传染性
④  远端控制窃取信息及破坏系统
【单选题】 隐蔽性失业是指( )
①  表面上有工作,实际上对生产没有做出贡献的人
②  实际失业而未去有关部门登记注册的人
③  被企业解雇而找不到工作的人
④  自然失业
【判断题】 结核潜伏感染人群具有传染性。
①  正确
②  错误
【单选题】 新型冠状病毒感染的患者和无症状感染者,在潜伏期即有传染性,发病后()传染性较强
①  3天
②  5天
③  7天
④  10天
⑤  15天
【判断题】 计算机病毒的潜伏性是指具有依附于其他媒体而寄生的能力,其潜伏性越好,在文件中存在的时间就越长,带来的破坏也就越大。
①  正确
②  错误
【判断题】 沙眼是沙眼病毒感染所致,其传染性很强,危害也很大
①  正确
②  错误
【单选题】 鸡传染性法氏囊病的危害在于
①  产蛋下降
②  免疫抑制
③  营养吸收障碍
④  孵化率下降
【判断题】 计算机木马不具有自我复制性和传染性,不会像病毒那样自我复制、刻意感染其他文件。
①  正确
②  错误
【单选题】 ()病毒属于木马病毒。
①  磁碟机
②  熊猫烧香
③  网银大盗
④  红蘑菇
【判断题】 潜伏期是指暴露至具有传染性的时间间隔
①  正确
②  错误
随机题目
【单选题】 阅读理解:阅读下列短文,回答文后问题,选择最佳答案:Goats are being hired to do the work of people near San Diego. The fires that occurred in Hillborbough four years ago destroyed thirty homes, most of which have been rebuilt. While people were rebuilding the homes, the grasses and bushes were growing back. The area is now so overgrown in bushes that there is again a major danger of fire.The city government put up bids to remove the bushes. The lowest bid they received was $50,000—and that was if the city provided breakfast and lunch for the workers for the six weeks it would take to clear the overgrown area. The city only wanted to give unlimited coffee and a piece of bread a day for each person. When that offer was rejected, the city asked for help on its website.A sheepherder in Montanta and a goat-keeper in San Bernardino read about the city’s plight(困境)while surfing the Web. They both offered to do the job for $25,000. The city government chose the goat-keeper because he lived closer. When he was told that the city dump(垃圾场)was overflowing , the goat-keeper said, “No problem. My goats will eat everything in your dump, except the car engines, of course.” So, for another $5,000, the city killed two birds with one stone. If all goes well, they will invite the goat-keeper and his “family” back every three years. The goat-keeper said that he would probably visit San Diego while his goats were in the dump.5.What can be inferred from the passage?
①  A. The city will remove the bushes in this area regularly.
②  B. The goat-keeper asked for $50,000 to kill the birds with stones.
③  C. The goat-keeper was invited to San Diego to do some sightseeing.
④  D. The city government was not kind to the people who worked for it.
【判断题】 阅读课文II. Television and Children,判断正误4. The negative influence of television can be avoided.
①  正确
②  错误
【判断题】 阅读课文II. Television and Children,判断正误1. Television is an excellent invention that may help with education
①  正确
②  错误
【判断题】 阅读课文II. Television and Children,判断正误2. Television companies show only educational programs for children.
①  正确
②  错误
【判断题】 阅读课文II. Television and Children,判断正误3.When a program attracts moderate audiences, it is discountinued.
①  正确
②  错误
【判断题】 阅读课文II. Television and Children,判断正误5.Parents and teachers should control what their chidren watch.
①  正确
②  错误
【单选题】 How are you _____ with your English studies?
①  getting away
②  getting together
③  getting along
④  getting up
【单选题】 I answered the question in two ways, but _____ of them was right.
①  either
②  both
③  none
④  neither
【单选题】 Ican’tmendmyshoe_____. Canyoumenditfor_____?
①  myself;me
②  myself; I
③  I
④  I; me
【单选题】 _____ people there are in a city, _____ I want to live there.
①  More; more
②  The more; the less
③  The more; the most
④  The more; the least