问题 单项选择题

脾、肾梗死灶肉眼检查的主要特点为()

A.多呈地图状、灰白色,界限清楚

B.多呈不规则形、暗红色,界限不清

C.多呈楔形、暗红色,界限不清

D.多呈地图形、暗红色,界限不清

E.多呈楔形、灰白色,界限清楚

答案

参考答案:E

解析:贫血性梗死发生在结构比较致密、侧支循环不充分的器官,如肾、脾、心肌。由于肾、脾的血管呈楔形分支,因此梗死也呈楔形,切面为扇面形,其尖端位于血管阻塞处,底部为该器官的表面,且与周围分界清楚;由于组织致密,故出血量不多,梗死灶呈灰白色。

阅读理解

William H. Gates is chairperson and chief software architect of Microsoft Corporation.the  worldwide  leader in software  services  and  internet technologies for personal and business computing.

Bill Gates was born on October 28.1 955 in a family having rich business,political and community service background.His great—grandfather was a state legislator(立法者)and a mayor,his grandfather was vice president of national bank and his father was a lawyer.

Bill strongly believes in hard work. He believes that if you are intelligent and know how to apply your intelligence,you can achieve anything.From childhood Bill was ambitious, intelligent and competitive.These qualities helped him to attain top position in the profession he chose.1n school,he had an excellent record in mathematics and science.Bill’s parents came to know their son’s  intelligence and decided to send him to a private school,known for its good academic environment.It was a very important decision in Bill Gates’ life where he was first introduced to a computer.Bill Gates and his friends were very much interested in computer and formed “programmer’s Group” in late l968.

Later,Bill Gates and his close friend Allen started a new company of their own,Traf-O-Data.They developed a small computer to measure traffic flow.From this project they earned around$20,000.In 1973.he left home for Harvard University.He did well over there,but he couldn’t find it interesting.He spent many long nights in front of the school’s computer and the next day asleep in class.

Within a year.Bill Gates dropped out from Harvard.Then he formed Microsoft.Microsoft’s vision is“ A computer on every desk and Microsoft software on every computer”.His belief in high intelligence and hard work has put him where he is today.He does not believe in mere(纯粹的)luck,but just hard work and competitiveness.

Bill Gates is not a greedy person.In fact,he is quite a giving person when it comes to computers,internet and any kind of funding.Several years ago, he visited Chicago’s Einstein Elementary School and announced grants benefiting Chicago’s schools and museums where he donated(捐款)a total of $1 1 0,000,a bunch of computers,and provided internet connectivity to a number of schools.Secondly,Bill Gates donated 38 million dollars for the building of a computer institute at Stanford University.Gates has decided to give away 95%of all his earnings when he retires.

小题1:.How old was Bill Gates when he retired from Microsoft in late June of 2008?

A.52.

B.55.

C.60.

D.62.小题2:.What does Bill Gates believe are most important in achieving success?

A.Intelligence and luck.

B.Hard work and intelligence.

C.Money and interest.

D.Good education and ambition.小题3:.What is the most important turning point in Bill Gates’ life?

A.He left home for Harvard University.

B.He dropped out from Harvard University.

C.He and his friend Allen started a new company.

D.He was sent to a private school where he first studied computer.小题4:.What kind of person can we say about Bill Gates?

A.Wealthy,greedy and successful.

B.Ambitious,Intelligent and selfish.

C.Intelligent.successful and generous.

D.Lazy,intelligent and competitive.

单项选择题