问题 单项选择题

纤维结构不良的特点不包括()

A.是一种骨发育异常

B.病变始发于骨髓腔

C.由纤维组织及其化生的编织骨构成

D.骨小梁周围有成排的骨母细胞

E.其形态可与骨化性纤维瘤相类似

答案

参考答案:D

解析:纤维结构不良是一种骨骼发育障碍,可发生于长管状骨及扁平骨,病变多开始于骨干或干骺端髓腔内,镜下基本病变是正常骨结构消失,主要由增生的纤维组织及编织状骨小梁构成,骨小梁纤细、弯曲、形状怪异,周围无或仅有少许骨母细胞围绕。骨化性纤维瘤则好发于颌骨,肿瘤位于皮质内,主要由纵横交错的纤维组织与成熟骨小梁构成,骨小梁周边可见成排的骨母细胞。

完形填空

Last year Tome left school. He came to Taipei to _1_ a job(工作). He went from one company(公司) to another but _2_ wanted him. Now he had little money. He had to go back to his small town. So he came to the station. He felt _3_ and tired. It was very late at night and _4_ was full of people. They were waiting _5_ tickets of the last train. He bought the last ticket, and he was very happy.

At that time, a woman with a crying baby walked to him. She asked him to sell her the ticket. He gave her the ticket. He thought they needed it _6_ he did. After _7_ left, he sat on the bench(长凳) and didn’t know _8_ to go. Just then, an old man came and said, “Young man, I _9_ what you did to the woman. I have a big company. I need a good young man like _10_. Would you like to work for me?”

( ) 1. A. find          B. see          C. look for     D. buy     

( ) 2. A. everyone      B. no one          C. nothing      D. something

( ) 3. A. happy     B. interesting     C. sad          D. glad    

( ) 4. A. the city      B. the company  C. the farm     D. the station 

( ) 5. A. to buy        B. to sell        C. to give         D. to pass

( ) 6. A. less than     B. more than       C. smaller them D. worse than

( ) 7. A. Tom           B. the bus      C. the train        D. the old man

( ) 8. A. what          B. which           C. why          D. where

( ) 9. A. have seen     B. don’t know  C. don’t like       D. have done

( ) 10. A. the woman    B. you          C. the baby     D. her

填空题