关于克罗伊茨费尔特-雅各布病(克-雅病,CJD)颅脑MRI的特点,叙述错误的有()

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问题:

关于克罗伊茨费尔特-雅各布病(克-雅病,CJD)颅脑MRI的特点,叙述错误的有()

A.DWI或Flair显示大脑皮质高信号(“缎带征”)提示变异型CJD(vCJD.

B.DWI或Flair显示大脑皮质高信号(“缎带征”)提示散发型CJD(sCJD.

C.双侧对称性丘脑枕核高信号(“曲棍球棒”)提示vCJD

D.双侧对称性丘脑枕核高信号(“曲棍球棒”)提示sCJD

E.双侧半球白质异常信号

考点:神经内科(医学高级)中枢神经系统感染中枢神经系统感染题库
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血小板减少的原因可分为()

A.进食异性蛋白

B.血小板生成减少

C.血小板破坏过多

D.受寒冷刺激

E.血小板在脾内滞留过多

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金融风险最基本的分类方法是按照金融风险涉及的范围划分为微观和主观金融风险两类。( )

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Valentine’s Day is named for Saint Valentine an early Christmas churchman who reportedly helped young lovers. Valentine was killed for his Christian beliefs on February 14 more than 1700 years ago, but the day that has his name is even earlier than that.

More than 2,000 years ago, the ancient Romans celebrated a holiday for lovers. As part of the celebration, girls wrote their names on pieces of paper and put them in a large container. Boys reached into the container and pulled one out. The girl whose name was written on the paper became his lover or sweet heart for a year.

Lovers still put their names on pieces of paper and they sent each other Valentine’s Day cards that tell of their love. Sometimes they also sent gifts, like flowers of chocolate candy. Americans usually send these gifts and cards through the mail system. But some used another way to send this message. They have it printed in a newspaper. The cost is usually a few dollars. Some of the messages are simple and short “Jane, I love you very much”. Others say more. This one, for example, “Dan, Roses are red. Violets are blue. I hope you love me as much as I love you. Forever. May.”

Most of the newspapers that print such messages are local, but USA Today is sold throughout the United States, and 90 other countries as well. This means someone can send a Valentine message to lover in a far-away city or town almost anywhere in the world. These messages cost 80 dollars and more. An employee of USA Today says readers can have a small heart or rose printed along with their messages this year. Will this kind of Valentine’s Day message reach the one you love? Well, just make sure he or she reads the newspaper.

1. When was the day named after Valentine?

A. More than 1700 years ago before Valentine’s death  

B. More than 2000 years ago

C. On February 24                              

D. It is not mentioned in the passage.

2. Which is not true about the Roman holiday?

A. Girls put into a container large pieces of paper with their own names on them.

B. Boys and girls became sweet hearts by chance

C. Girls and boys were not lovers for a year.

D. It was celebrated as a holiday for lovers

3. What is the cost of printing a message to show one’s love? It’s _______________.

A. a few dollars                   B. 80 dollars, and more                C. very expensive

D. a few dollars in a local newspaper and 80 dollars in USA Today

4. What can be inferred from the passage?

A. The ancient Roman girls were more open and easy-going than boys

B. Valentine was killed for helping lovers

C. Readers of USA Today can send roses to their lovers along with printed messages

D. Valentine was honored by people for his firm Christian belief and warm heart

5. What is the purpose of the passage?

A. To briefly introduce the origin of Valentine’s Day and the modern style.

B. To advertise for USA Today.

C. To tell you that Americans are open to express their love

D. To sell roses on Valentine’s Day.              

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什么是内部控制?

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下列有关细胞的分化的叙述不正确的是()

A.细胞的分化发生在生物体的整个生命进程中

B.细胞分化仅发生在胚胎时期

C.经过细胞分化会形成不同的细胞和组织

D.细胞分化是一种持久性的变化

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