题目内容

Text 3 The "MyDoom" virus could presage a generation of computer attacks by organised gangs aiming to extract ransoms from online businesses, experts said yesterday. The warning came as the website run by SCO, a company that sells Unix computer software, in effect disappeared from the web under a blizzard of automated attacks from PCs infected by the virus, which first appeared a week ago. The "MyDoom-A" version of the virus is reckoned to be the worst to have hit the internet, in terms of the speed of its spread, with millions of PCs worldwide believed to be infected. Such "zombie" machines begin to send out hundreds of copies of the virus every hour to almost any e-mail address in their files. On Sunday they began sending automated queries to SCO’s website, an attack that will continue until 12 February. The attack is the web equivalent of ringing the company’s doorbell and running away a million times a second, leaving its computers unable to deal with standard requests to view its pages. "You have to wonder about the time limit," said Graham Cluley, senior technology consultant at the antivirus company Sophos. "Someone could go to SCO after the 12th and say, ’If you don’t want this to happen again, here are our demands’." Raimund Genes, European president of the security software firm Trend Micro, said: "Such a programme could take out any major website on the internet. It’s not terrorism, but it is somebody who is obviously upset with SCO" SCO has earned the enmity of computer users through a lawsuit it has filed against IBM. SCO claims ownership of computer code it says IBM put into the free operating system Linux, and is demanding licence fees and damages of $1bn. Mr. Cluley said: "It might be that whoever is behind this will say to SCO, ’if you don’t want the next one to target you, drop the lawsuit’." SCO has offered $250,000 (£140,000) for information leading to the arrest of the person or people who wrote and distributed MyDoom. Nell Barrett, of the security company Information Risk Management, said, "I would give a lot of credence to the idea of gangs using viruses to extort money. It’s hard for law enforcement to track them down, because they’re using machines owned by innocent people." A second variant of MyDoom will start attacking part of Microsoft’s website later today. The antivirus company MessageLabs said it had blocked more than 16 million copies of the virus in transit over the net so far. But millions more will have reached their targets. Neil Barrett’s remarks are quoted to show ______.

A. experts’ different understandings of intention of the attack
B. the difficulty to find out the gangs behind this act
C. people’s doubt about winning the lawsuit against sca
D. the problem with the security of information management

查看答案
更多问题

Directions: Read the following text. Choose the best word (s) for each numbered blank and mark A, B, C or D on Answer Sheet 1. The amount of sunlight reaching Earth’s surface appears to be growing. The phenomenon, which some dub "global brightening," (1) scientists with a puzzle. If the (2) is real and global, how long will it last and what are the consequences for climate change, the planet’s water cycle, and other (3) that draw energy from sunlight (4) , the answer might seem obvious: More sunlight reaching the ground in a warming world means that temperatures will get warmer (5) . Not so fast, some researchers say. Additional warming would be certain (6) nothing else in the climate system changes. And the climate system is (7) static. Some combinations of changes could reinforce the heating; others could (8) it. Unraveling these interactions and forecasting their course require an accurate accounting of the sunlight reaching the surface and the (9) the surface sends skyward. Moreover, researchers say, measurements of the sun’s strength at Earth’s surface are potentially powerful tools for (10) human influences on the climate. Earth’s radiation "budget" (11) an "extremely important parameter that is (12) known,’ says Robert Charlson, an atmospheric scientist at the University of Washington at Seattle. "It needs to be (13) much better than it is." (14) about the amount of sunlight reaching Earth’s surface were first raised in 1974. Researchers from the United States and Israel recorded a 12% drop (15) sunlight over 40 years at a (16) station in the southern Sinai Peninsula. Since then, others have used a variety of techniques to try to track (17) sunlight. Three years ago, for example, a (18) led by Beate Liepert at Columbia University’s Lamont-Doherty Earth Observatory gathered data from ground (19) around the world and found that solar radiation reaching the surface fell (20) 4% from 1961 to 1990.

A. rarely
B. badly
C. actually
D. poorly

きのう お(とう)さんから (てがみ)が (きました)。

某企业有玻璃器皿生产车间。该企业的玻璃器皿制造分为烧制玻璃熔液、吹制成型和退火处理三道主要工序,烧制玻璃溶液的主要装置是玻璃熔化池炉。烧制时,从炉顶部侧面人工加入石英砂(二氧化硅)、纯碱(氢氧化钠)、三氧化二砷等原料,用重油和煤气作燃料烧至1300~1700℃,从炉底侧面排出玻璃熔液。玻璃器皿的生产车间厂房为钢筋混凝土框架结构,房顶是水泥预制板。厂房内有46t玻璃熔化池炉1座,炉高6 m,炉顶距厂房钢制房梁1.7 m,炉底高出地面15 m。距炉出料口3 m处是玻璃器皿自动吹制成型机和退火炉。煤气调压站距厂房直线距离15 m,重油储罐距厂房直线距离15 m。车间内有员工20人正在工作。由于熔化池炉超期服役,造成炉顶内拱耐火砖损坏,烈焰冲出炉顶近1 m,炉两侧的耐火砖也已变形,随时有发生溃炉的可能。2008年6月11日,当地政府安全生产监督管理部门在进行监督检查时;发现该炉存在重大事故隐患;当即向企业发出暂时停炉、停产的指令。 根据以上场景,回答下列问题 本案中,当地政府安全生产监督管理部门在监督检查时行使了《安全生产法》赋予的哪些职权

Directions: Read the following text. Choose the best word (s) for each numbered blank and mark A, B, C or D on Answer Sheet 1. The amount of sunlight reaching Earth’s surface appears to be growing. The phenomenon, which some dub "global brightening," (1) scientists with a puzzle. If the (2) is real and global, how long will it last and what are the consequences for climate change, the planet’s water cycle, and other (3) that draw energy from sunlight (4) , the answer might seem obvious: More sunlight reaching the ground in a warming world means that temperatures will get warmer (5) . Not so fast, some researchers say. Additional warming would be certain (6) nothing else in the climate system changes. And the climate system is (7) static. Some combinations of changes could reinforce the heating; others could (8) it. Unraveling these interactions and forecasting their course require an accurate accounting of the sunlight reaching the surface and the (9) the surface sends skyward. Moreover, researchers say, measurements of the sun’s strength at Earth’s surface are potentially powerful tools for (10) human influences on the climate. Earth’s radiation "budget" (11) an "extremely important parameter that is (12) known,’ says Robert Charlson, an atmospheric scientist at the University of Washington at Seattle. "It needs to be (13) much better than it is." (14) about the amount of sunlight reaching Earth’s surface were first raised in 1974. Researchers from the United States and Israel recorded a 12% drop (15) sunlight over 40 years at a (16) station in the southern Sinai Peninsula. Since then, others have used a variety of techniques to try to track (17) sunlight. Three years ago, for example, a (18) led by Beate Liepert at Columbia University’s Lamont-Doherty Earth Observatory gathered data from ground (19) around the world and found that solar radiation reaching the surface fell (20) 4% from 1961 to 1990.

A. trend
B. tread
C. trench
D. treaty

答案查题题库