问题 单项选择题 A1/A2型题

釉珠附着在()

A.牙冠部表面

B.牙根尖部牙髓表面

C.冠髓内壁

D.根髓内壁

E.近颈部牙骨质表面

答案

参考答案:E

解析:釉珠是牢固附着于牙骨质表面的釉质小块,大小似粟粒,呈球形。它多位于磨牙根分叉内或其附近,或见于釉质牙骨质界附近的根面上。故答案为E。

阅读理解

三. 阅读理解(30分)

Einstein, a great scientist of the age, was almost as strange as his Theory of Relativity.

Once, while riding a street car in Berlin, he told the conductor that he had not given him the right change. The conductor counted the change again and found it to be correct, so he handed it to Einstein, saying, “The trouble with you is that you don’t know your figures.”

Einstein said that there were only twelve people living who understood his Theory of Relativity although a good many books had been written to explain it.

He had nothing but contempt(蔑视) for the things most people set their hearts on --- for fame and riches(财富) and luxury(奢华).

He didn’t want money or praise. He made his own happiness out of such simple things as his work and playing the violin and sailing his boat. Einstein’s violin brought him more joy than anything else in life. He said that he often thought in music.

1.The conductor thought Einstein _____ .

A. wasn’t good at maths          B.had good memory  

C. was either mad or strange        D.liked to make trouble

2.Einstein meant that many people _____ .

A.  knew his Theory of Relativity well because they could explain it    

B.had written to have grasped his theory correctly 

C.pretended to have grasped his abstract theory  

D.admired him very much

3.Which of the following statements is true?

A.  Einstein care little for fame or wealth.

B.  Einstein had nothing but enough fame and riches and luxury.

C.  Einstein was eager for the things most people set their hearts to.

D.  In the eyes of Einstein, most people had a strong wish to publish book on the theory.

4.  The underline part “set their hearts on” means _____.

A.  believe           B. have           C. love           D. hate

单项选择题 A2型题