题目内容
男性，44岁，手术过程中突然出现皮肤、黏膜苍白，手术区血色变暗发紫，应考虑
查看答案
搜索结果不匹配？点我反馈
更多问题
女性，35岁，哮喘急性发作时查体发现过度充气体征，与肺气肿十分相似，此时最好的鉴别方法是
Shyness is the cause of much unhappiness for a great many people. Shy people are (1) and serf-conscious; that is, they are (2) concerned with their own appearance and actions. (3) thoughts are (4) occurring in their minds: What kind of impression am I makingIt is obvious that such (5) feelings must affect people adversely. A person’s self-concept is (6) in the way he or she behaves, and the way a person behaves affects other people’s reactions. (7) , the way people think about themselves has a profound effect on all areas of their lives.Shy people, having low (8) , are likely to be passive and easily influenced by others. They need reassurance (9) they are doing "the fight thing". Shy people are very (10) to criticism; they feel it (11) their inferiority. A shy person may (12) to a compliment with a statement like this one: "You’re just saying that to make me feel good." It is clear that, (13) self-awareness is a healthy quality, overdoing it is harmful.Can shyness be completely (14) , or at least reduced Fortunately, people can overcome shyness with determined and patient effort in building self-confidence. Since shyness goes (15) with lack of serf-esteem, it is important for people to accept their weakness as well as their strengths. For example, most people would like to be "A" students in every subject. It is not fair for them to (16) themselves inferior because they have difficulty (17) some areas. People’s expectations of themselves must be (18) Each one of us is a unique, worthwhile individual. The better we understand ourselves, the easier it becomes to (19) our full potential. Let’s not allow shyness to block our chances for a rich and (20) life. 6（）
The old lady has ______ two wars and revolutions.
Text 2SoBig. F was the more visible of tile two recent waves of infection, because it propagated itself by e-mail, meaning that victims noticed what was going on. SoBig. F was so effective that it caused substantial disruption even to those protected by anti-virus software. That was because so many copies of the virus spread that many machines were overwhelmed by messages from their own anti-virus software. On top of that, one common counter-measure backfired, increasing traffic still furthers. Anti-virus software often bounces a warning back to the sender of an infected e-mail, saying that the e-mail in question cannot be delivered because it contains a virus. SoBig. F was able to spoof this system by "harvesting" e-mail addresses from the hard disks of infected computers. Some of these addresses were then sent infected e-mails that had been doctored to look as though they had come from other harvested addresses. The latter were thus sent warnings, even though their machines may not have been infected.Kevin Haley of Symantec, a firm that makes anti-virus software, thinks that one reason SoBig. F was so much more effective than other viruses that work this way is because it was better at searching hard-drives for addresses. Brian King, of CERT, an internet-security center at Carnegie- Mellon University in Pittsburgh, note that, unlike its precursors, SoBig. F was capable of "multi- threading": it could send multiple e-mails simultaneously, allowing it to dispatch thousands in minutes.Blaster worked by creating a "buffer overrun in the remote procedure call". In other word, that means it attacked a piece of software used by Microsoft’s Windows operating system to allow one computer to control another. It did so by causing that software to use too much memory.Most worms work by exploiting weaknesses in an operating system, but whoever wrote Blaster had a particularly refined sense of humor, since the website under attack was the one from which users could obtain a program to fix the very weakness in Windows that the worm itself was exploiting.One way to deal with a wicked worm like Blaster is to design a fairy godmother worm that goes around repairing vulnerable machines automatically. In the case of Blaster someone seems to have tried exactly that with a program called Welchi. However, according to Mr. Haley, Welchi has caused almost as many problems as Blaster itself, by overwhelming networks with "pings" -- signals that checked for the presence of other computers.Though both of these programs fell short of the apparent objectives of their authors, they still caused damage. For instance, they forced the shutdown of a number of computer networks, including the one used by the New York Times newsroom, and the one organizing trains operated by CSX, a freight company on America’s east coast. Computer scientists expect that it is only a matter of time before a truly devastating virus is unleashed. Compared with SoBig. F, Blaster was a virus that was（）
微信支付 
支付宝支付