引起主动脉瓣关闭不全最常见的病因是() A.风湿性心脏病 B.主动脉窦瘤 C

题型:单项选择题

问题:

引起主动脉瓣关闭不全最常见的病因是()

A.风湿性心脏病

B.主动脉窦瘤

C.马凡综合征

D.升主动脉粥样硬化

E.主动脉瓣脱垂

考点:医学影像住院医师超声科超声科题库
题型:单项选择题

Chairman Mao once said: “It is not hard to do one good deed. It is hard to do good deeds all your life.” Guo Mingyi, 52, a worker in Anshan, Liaoning, did just that. Over the past 20 years, Guo has donated 60,000 milliliters(毫升) of blood. That is the blood of 10 people put together.

   Once, on a cold winter of 2009, Guo got a call from the hospital. The doctors told him that a patient needed a blood donation. Guo didn’t have time to eat lunch. He travelled in the snow to get to the hospital. When he finished donating the blood, he was so tired that he fell asleep on the hospital bed.

   Guo and his family live a simple life. He and his wife and daughter live in a house of only 40 square meters. They don’t have a lot of money, but Guo saves money to support poor children. In the past 16 years, he has donated over 100,000 yuan to more than 180 poor students. When the parents met him, many cried. “He looks poorer than us,” they said.

   Guo has also offered hands to thousands of workers, friends and strangers. His warm heart has moved many people. They call him a “Modern-Day Lei Feng”.

   Recently, Chinese leaders called on people to learn from Guo. They say young people especially should learn his selfless devotion(无私奉献).But Guo said he did these things in order not to get famous. “It’s just that some people need some help, and there should be someone standing out to give them a hand,” he said.

小题1:When was Guo Mingyi born in Anshan, Liaoning?

A.In 1940

B.In 1950

C.In 1960

D.In 1970小题2:Why did Guo Mingyi donate the blood to a patient on a cold winter of 2009?

A.Because they are good friends.

B.Because he had no money to eat lunch.

C.Because he wanted to sleep in the hospital

D.Because he wanted to help the patient very much.小题3:Which of the following is RIGHT about Guo Mingyi?

A.He is a common businessman.

B.He has a very rich family.

C.He wants to be famous a lot.

D.He devotes what he has to helping others小题4:What does the writer write the passage for?

A.To learn from Gou Mingyi’s selfless devotion.

B.To donate blood to the people in need.

C.To raise money for poor students.

D.To remember Lei Feng.小题5:Which part of the newspapers can we see the passage ?

A.Sports news

B.Health care

C.People

D.Nature

题型:单项选择题
过⊙O外一点P作⊙O的两条切线PA、PB,切点为A和B,若AB=8,AB的弦心距为3,则PA的长为(  )
A.5B.
20
3
C.
25
3
D.8
题型:单项选择题

服装里料的主要作用是什么?选用服装里料时应考虑哪些因素?

题型:单项选择题

下列不属于直流电机转子构成的是()。

A.电枢铁芯

B.电枢绕组

C.换向极

D.换向器

题型:单项选择题

企业职工伤亡事故是指职工在劳动过程中发生的()事故。

A.人身伤害

B.急性中毒

C.环境污染

D.精神伤害

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