问题 单项选择题 A1/A2型题

引起同种异型器官移植排斥反应的靶抗原主要是().

A.表达于移植物细胞表面MHC分子

B.表达于移植物细胞表面的次要组织相容性抗原

C.血型抗原

D.异嗜性抗原

E.自身抗原

答案

参考答案:A

解析:HLA是不同个体间进行器官或组织移植时发生排斥反应的主要成分。除MHC编码的HLA外,还存在以下与器官移植排斥反应相关的同种抗原:其他血细胞抗原、组织特异性抗原、次要组织相容性抗原。

单项选择题
阅读理解

Beijing has started a battle to get rid of "Chinglish" (Chinese English). The "Language Mandarins" of Beijing have decided that Chinglish is a disease for China's modernizing claim and must be obliterated before the city hosts the Olympic Games in 2008.

A road sign on the Avenue of Eternal Peace (Chang'an Street) ,for example, advises: "To Take Notice of Safe; The Slippery Are Very Crafty", a warning that the sidewalk was slippery(滑). Another sign in a Beijing park reads: "Little grass is smiling slightly, please walk on sidewalk. "

Li Honghai, the city official in charge of the battle, said," Linguistic perfection (语言美) is becoming increasingly important with the rise in the number of the foreigners flowing into the city."

However, not everyone shares the disdain (蔑视) of the Beijing government for the mixed language. "The choice of words is pretty much. One can either choose the verbs, adverbs, nouns or whatever one likes," explained one Hong Kong linguist on an Internet website.

So many examples exist that several Internet sites have been set up to collect Chinglish phrases. Many come from English instructions on packages such as a candle marked with "Keep this candle out of children" and a model boat—curiously named Posh Sailboat—which means, "Please don't place it in dusty play."

If the battle against Chinglish is successful, Chinese will also turn their attention to the English-language versions of newspapers, which play an even more important role in teaching right English.

小题1:The underlined word "obliterated" refers to           .

A.removed

B.exploited

C.translated

D.beautified小题2:From the passage, we know that           .

A.everyone shares the disdain for the mixed language

B.all the people don't share the disdain for the mixed language

C.Chinglish usually communicates in many cases

D.several Internet sites have been set up to clear the Chinghsh phrases小题3:We can infer that the English-language version of newspapers           .

A.should be in duty to teach normal English

B.should report the above battle

C.should be paid more attention to

D.should collect more Chinglish phrases小题4:Which of the following signs is Chinglish?

A.Watch your step. Slippery sidewalk.

B.Keep off the grass, please.

C.Tourists do not enter.

D.No smoking, please.