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【单选题】

The scourge that’s plaguing cruise lines--and causing thousands of tourists to rethink their holiday travel plans--didn’t start this year, nor did it even start on a ship. It began, as far as the Centers for Disease Control (CDC) can tell, in Norwalk, U. S., in October 1968, when 116 elementary school children and teachers suddenly became iii. The CDC investigated, and the cause was discovered to be a small, spherical, previously unclassified virus that scientists named, appropriately enough, the Norwalk virus.
Flash forward 34 years, and Norwalk-like viruses ( there’s a whole family of them) are all over the news as one ocean liner after another limps into port with passengers complaining of nausea and vomiting. The CDC, which gets called in whenever more than 2% of a vessel’s passengers come down with the same disease, identified Norwalk as the infectious agent and oversaw thorough ship cleaning--which, to the dismay of the owners of the cruise lines, haven’t made the problem go away.
So are we in the middle of an oceangoing epidemic Not according to Dave Forney, chief of the CDC’s vessel-sanitation program. He sees this kind of thing all the time; a similar outbreak on sever al ships in Alaska last year got almost no press. In fact, he says, as far as gastrointestinal illness goes, fewer people may be getting sick this year than last.
Norwalk-like viruses, it turns out, are extremely common--perhaps second only to cold viruses-and they tend to break out whenever people congregate in close quarters for more than two or three days. Oceangoing pleasure ships provide excellent breeding grounds, but so do schools, hotels, camps, nursing homes and hospitals. "Whenever we look for this virus," says Dr. Marc Widdowson, a CDC epidemiologist, "we find it." Just last week 100 students (of 500) at the Varsity Acres Elementary School in Calgary, Canada, stayed home sick. School trick Hardly. The Norwalk virus had struck again.
If ocean cruises are your idea of fun, don’t despair. This might even be a great time to go shipping for a bargain. The ships have been cleaned. The food and water have been examined and found virus free. According to the CDC, it was probably the passengers who brought the virus aboard.
Of course, if you are iii or recovering from a stomach bug, you might do everybody a favor and put off your travel until the infectious period has passed (it can take a couple of weeks). To reduce your chances of getting sick, the best thing to do is wash your hands--frequently and thoroughly-- and keep them out of’ your mouth.
One more thing: if, like me, you are prone to motion sickness, don’t forget to pack your Drama mine.
What can be inferred from the words of Dave Forney

A.
Norwalk-like viruses caused horrors among people.
B.
Norwalk-like viruses can be eliminated by CDC.
C.
Norwalk-like viruses casually appear on vessels.
D.
Norwalk-like viruses co-exist with gastrointestinal illness.
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【单选题】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...

A.
The "MyDoom" virus could presage a generation of computer attacks by organised gangs aiming to extract ransoms from online businesses, experts said yesterday.
B.
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.
C.
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.
D.
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.
E.
"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"
F.
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.
G.
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.
H.
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."
I.
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.

【单选题】下列关于结构规则性的判断或计算模型的选择,何项不妥说明理由。 提示:按《建筑抗震设计规范》(GB 50011—2010)作答。

A.
当超过梁高的错层部分面积大于该楼层总面积的30%时,属于平面不规则
B.
顶层及其他楼层局部收进的水平尺寸大于相邻下一层的25%时,属于竖向不规则
C.
抗侧力结构的层间受剪承载力小于相邻上一层的80%时,属于竖向不规则
D.
平面不规则或竖向不规则的建筑结构,均应采用空间结构计算模型

【单选题】When does the conversation probably take place() A.Shortly after supper. B.When the school bus is about to come C.Before breakfast.

A.
M: Have you seen my school bag, Mom I’ve been looking for it everywhere.
B.
W: I hope you didn’t leave it in school. You never know where you put your things. Where did you last see it
C.
M: Last night before I went to bed, I think. I remember putting it on the desk
D.
W: Really If you put it there, it should still be there. No one has been to your room. So it must be here somewhere.
E.
M: Yes, but where That’s what I want to know. Oh, dear, it’s about the time for the school bus.
F.
W: Hey, what’s that under your blanket at the foot of your bed

【单选题】It can Be inferred from the text that the purpose of the attack could be () A. to render the doorbell of the company useless B. to prevent those nonstandard requests to visit C. to make some demands o...

A.
The "MyDoom" virus could presage a generation of computer attacks by organised gangs aiming to extract ransoms from online businesses, experts said yesterday.
B.
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.
C.
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.
D.
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.
E.
"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"
F.
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.
G.
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.
H.
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."
I.
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.
相关题目:
【单选题】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...
A.
The "MyDoom" virus could presage a generation of computer attacks by organised gangs aiming to extract ransoms from online businesses, experts said yesterday.
B.
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.
C.
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.
D.
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.
E.
"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"
F.
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.
G.
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.
H.
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."
I.
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.
【单选题】下列关于结构规则性的判断或计算模型的选择,何项不妥说明理由。 提示:按《建筑抗震设计规范》(GB 50011—2010)作答。
A.
当超过梁高的错层部分面积大于该楼层总面积的30%时,属于平面不规则
B.
顶层及其他楼层局部收进的水平尺寸大于相邻下一层的25%时,属于竖向不规则
C.
抗侧力结构的层间受剪承载力小于相邻上一层的80%时,属于竖向不规则
D.
平面不规则或竖向不规则的建筑结构,均应采用空间结构计算模型
【单选题】When does the conversation probably take place() A.Shortly after supper. B.When the school bus is about to come C.Before breakfast.
A.
M: Have you seen my school bag, Mom I’ve been looking for it everywhere.
B.
W: I hope you didn’t leave it in school. You never know where you put your things. Where did you last see it
C.
M: Last night before I went to bed, I think. I remember putting it on the desk
D.
W: Really If you put it there, it should still be there. No one has been to your room. So it must be here somewhere.
E.
M: Yes, but where That’s what I want to know. Oh, dear, it’s about the time for the school bus.
F.
W: Hey, what’s that under your blanket at the foot of your bed
【单选题】It can Be inferred from the text that the purpose of the attack could be () A. to render the doorbell of the company useless B. to prevent those nonstandard requests to visit C. to make some demands o...
A.
The "MyDoom" virus could presage a generation of computer attacks by organised gangs aiming to extract ransoms from online businesses, experts said yesterday.
B.
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.
C.
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.
D.
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.
E.
"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"
F.
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.
G.
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.
H.
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."
I.
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.
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