问题 多项选择题

慢性肾衰竭的发病机制包括()。

A.肾小球高滤过

B.肾单位高代谢

C.肾组织上皮细胞表型转化作用

D.TGF-β、IL-1、血管紧张素Ⅱ、内皮素-1等细胞因子作用

E.肾小球低灌注

答案

参考答案:A, B, C, D

阅读理解

You can buy chewing gum in nearly every country of the world. ① But it wasn’t always like that.[

The American Indians were the first people to chew gum. This gum came from a special tree that grew on their land. In 1848, a sailor called John Curtis began selling it. He was the first person to sell chewing gum. The gum he sold cost just a few cents for two pieces. It became popular very quickly even though it was very hard to chew. ② Nowadays, other things are added to the gum to make it soft and sweet.

By 1890, there were hundreds of different chewing gums. The most famous name in chewing gum, however, is probably William Wrigley. He spent a lot of money in advertising and even sent free pieces of gum to children on their birthdays. ③ He also said that chewing gum helped people work better and that it stopped people from feeling tired.

Although today many millions of people chew gum, not everyone thinks it is a good thing to do. Many people think it is dirty. The Singapore government does not allow people to buy chewing gum. One reason for this is that when some people have chewed all the taste out of their piece of gum, they take it out of their mouths and put it on to the backs of seats or other places. 

小题1:请将①处翻译成汉语。________________________

小题2:请根据②处内容完成下面句子。(每空一词)

People make chewing gum soft and sweet _________something to it.

小题3:把③处改为直接引语。(每空一词)

He also said“, Chewing gum______ people work better and it ______people from feeling tired.”

单项选择题