由于表面污秽或机械力作用可能引起绝缘性能降低造成的过热故障，如绝缘子劣化或严重污秽引

患者女性，38岁，双颊黏膜白色病变1年。活检标本见上皮萎缩，表面不全角化，上皮钉突呈不规则延长，基底细胞层液化变性，固有层内近上皮区域见淋巴细胞浸润带。病理诊断为

A．慢性盘状红斑狼疮

B．寻常性天疱疮

C．扁平苔藓

D．良性黏膜类天疱疮

E．念珠菌病

阅读理解.

     As Mrs Thompson stood in front of her 5th grade class on the very first day of school,

she told the children a lie.Like most teachers,she looked at her students and said that she

loved them all the same.

     But that was impossible,because there in the front row,slumped in his seat,was a little

boy named Teddy Stoddard.Mrs Thompson noticed that he didn't play well with the other

children,that his clothes were messy and that he constantly needed a bath.And Teddy could

be unpleasant.It got to the point where Mrs Thompson would actually take delight in marking

his papers with a broad red pen,making bold X's and then putting a big "F" at the top of his

papers.

     However,when she reviewed his file,she got a surprise.

     Teddy's first grade teacher wrote,"Teddy is a bright child with a ready laugh.He does his

work neatly and has good manners...he is a joy to be around."

     His second grade teacher wrote,"Teddy is an excellent student,well liked by his classmates

,but he is troubled because his mother has a terminal illness and life at home must be a struggle."

     His third grade teacher wrote,"His mother's death has been hard on him.He tries to do his

best but his father doesn't show much interest and his home life will soon affect him if some

steps aren't taken."

     Teddy's fourth grade teacher wrote,"Teddy is withdrawn and doesn't show much interest

in school.He doesn't have many friends and sometimes sleeps in class."

     Now,Mrs Thompson was ashamed of herself and felt worse when her students brought

her beautifully wrapped Christmas presents.Teddy's present,however,was clumsily wrapped

in rough brown grocery paper.Taking her time she opened it to reveal Teddy's gifts,a rhinestone

bracelet with stones missing and a quarter full perfume bottle.How the children laughed!"What

a pretty bracelet!Mm,lovely perfume!Perfect on my wrist." The children were silent.

     Alone together,after school,Teddy told Mrs Thompson,"Today you smelled just like my

Mom used to..." His teacher cried all night and,from that day,she stopped teaching reading,

writing,and arithmetic and began to teach children instead.

1．What is the best title of this text?_____

A．A Student's Best Friend

B．How To Be a Good Student

C．The Story of a Good Teacher

D．A Teacher's Lesson

2．Which of the following is true about Teddy?______

A．He only bathed once a week.

B．He had no friends at school.

C．His clothes were usually untidy.

D．He was the worst student in the class.

3．How did Teddy's behaviour change between Grade 1 and 4?______

A．He became better at making friends.

B．He became closer to his father.

C．He paid less attention to school.

D．He stopped doing his homework.

4．Why did Mrs Thompson feel ashamed after she read Teddy's file?______

A．She didn't treat Teddy fairly.

B．She was being unpleasant to Teddy.

C．She took delight in failing Teddy in the exam.

D．She disliked Teddy for all his problems.

5．We can learn from the last paragraph that________.

A．Mrs Thompson was deeply hurt by Teddy's words

B．Teddy missed his mother and desired love very much

C．Mrs Thompson realised it useless to teach knowledge

D．Mrs Thompson cried because she lied to Teddy about his parents

国际奥委会于（）年4月决定给予体育舞蹈以准进入资格得到奥委会承认。

A.1994

B.1995

C.1996

D.1997

马斯洛的需要层次理论把人的需要分为七个层次：生理需要、安全需要、（）尊重需要、（）、审美需要和（）。

决定微机性能的主要指标是（）。

A.CPU主频

B.耗电量

C.质量

D.价格