问题 单项选择题

在免疫应答过程中,CTL可

A.提呈外源性抗原
B.提呈内源性抗原
C.分泌抗体
D.产生补体
E.诱导Ⅰ型超敏反应

答案

参考答案:B

阅读理解

阅读理解。

     Oleksander Pylyshenko is either very fearless,very foolish… or both. The 40-year-old zookeeper

from the Ukraine recently spent five weeks in a cage with Katya, a 200-kilo African lioness. Why? Well

for a start, he wanted to raise awareness of the treatment of animals in captivity. Secondly, he hoped to

break the Guinness World Record for time spent living in a cage with a lion. And thirdly? "I wanted to

show my children what kind of man I am," said Oleksander.

     For 36 days, Oleksander and Katya shared the cage together. They ate hunks of meat thrown into

the cage by Oleksander's wife, and slept side by side on a bed of hay. Oleksander did have a few more

creature comforts than his feline flatmate - he built himself a shower and toilet inside the enclosure. But he

didn't use any soap as the sharp scent is upsetting to lions.

     And as if living with the king of the jungle wasn't dangerous enough, Katya was also pregnant at the

time. She gave birth during Oleksander's stay. Wild animals are very protective of their young but the

zookeeper said Katya trusted him completely. Oleksander' wife, Olena, was also very trusting. "when he

first told me about the plan I was very scared. But I decided to support my husband."

     Once the five weeks was up, Oleksander stepped out of the cage and declared the experiment a

success. He told a Russian news agency, "Katya taught me a lot about honesty and kindness." Also, a

representative from Guinness World Records confirmed that Oleksander ahd beaten the previous record

by three weeks.

     But the parting was also bittersweet. "Katya was very sad to see me go," Oleksander noted. Oleksander's wife, on the other hand, was very happy to have her husband back.

1. Which is not the purpose of spending 5 weeks in cage with a lion according to Oleksander?

A. He wanted to raise awareness of the treatment of animals in cage.

B. He hoped to break the Guinness World Record for time spent living in a cage with a lion.

C. He wanted to show his children his kindness as a man.

D. He wanted to earn money by taking the risk of living with a lion.

2. What did Oleksander do in order to live more comfortably in the cage with a lion?

A. He made a bed with soft pillow and warm quilt.

B. He equipped the enclosure with modern facilities, for example, a computer.

C. He put up a tent to protect himself from sun and rain.

D. He himself built a shower and toilet inside the enclosure.

3. Why didn't he use any soap when he took the shower?

A. He didn't use any soap for fear of annoying the lion.

B. He didn't have any access to soap.

C. He didn't like the smell of soap.

D. Soap was forbidden in the zoo.

4. What's Oleksander's wife's attitude toward his stay with a lion in a cage?

A. indifferent    

B. objective      

C. opposed      

D. supportive

5. Oleksander spent ________ more weeks than the previous record.

A. one    

B. two      

C. three      

D. four

多项选择题