问题 单项选择题

下列选项中,属于计算机病毒特征的是______。

A.多样性

B.传染性

C.随机性

D.免疫性

答案

参考答案:B

阅读理解

阅读理解。

     If you talk about a dog's life, go to Beijing to see the pampered (过分娇惯的) dogs. Dogs clipped,

dressed up, washed and dried. Here, it's the owners who go to obedience (服从) school, and these

people pay almost a thousand US dollars a month to learn how to properly care for their pets. Dogs are

hot in Beijing, a symbol of a new middle-class family.

     Dogs or pets can take the place of children, even husbands. Qin Lu, 23-year-old dog owner, certainly

thinks her dog makes some more loyal partner. She's spending 1,300 yuan, that's almost 200 US dollars

a month, sending her dog to the training school. Think about it, almost half her monthly salary as a

secretary.

     Personally, if I have a dog, I want to give it the very best of everything. Otherwise, I wouldn't have a

dog.

     Before we get too sentimental (引起伤感情绪的), though, other dogs in China have a far more

grisly (令人毛骨悚然的) fate, many still destined for the dinner table, dog meat, a popular delicacy.

But appetities are changing. What was once for the eating is now for the treating. Beijing alone is home

to more than a million dogs. Owners spend an average 25 dollars a month on pets. Do the math. Dogs

are big business. Ning Wei who runs this obedience school on the outskirts of Beijing said. "It has been

open for almost three years. There are many dogs. And now we are opening another branch."

     As their owners embrace everything western, so too, are the dogs. Ning Wei's specializing in

producing a new breed of bilingual puppies. Yes, dogs that understand Chinese and now English. "I'm

going to do a test now to see if it understands both English and Chinese. Effectively, if its Chinese is better

than my English, and its English is better than my Chinese."

1. From the first paragraph we can know _______ in Beijing.

A. dogs are tired of the hot days

B. why people spend so much buying a dog

C. dogs are very expensive

D. many new middle-class families raise dogs

2. What can we know about Ning Wei from the passage?

A. He is an English teacher in an obedience school.

B. He is a businessman who runs a school.

C. He is a dog-keeper who is learning how to properly care for his dog.

D. He is a researcher who is crazy for the bilingual puppies.

3. From the passage we can conclude that ______.

A. there are many different kinds of dogs from all over the world in Beijing

B. many Beijingers love dogs better than their own sons or daughters, even their husbands or wives

C. learning how to treat dogs is a hot business in Beijing now

D. so much money has been spent on treating every dog

单项选择题