有关肺动脉瓣关闭不全,下列哪项是错误的A.风湿性肺动脉瓣关闭不全,极为罕见  B.如

题型:单项选择题

问题:

有关肺动脉瓣关闭不全,下列哪项是错误的

A.风湿性肺动脉瓣关闭不全,极为罕见 

B.如为风湿性肺动脉瓣病变,则其他瓣膜必有病变 

C.均为功能性肺动脉瓣关闭不全 

D.肺动脉瓣返流血流频谱呈单峰型,也可呈双峰型,返流速度一般大于1.5m/s 

E.如有重症肺高压,返流速度也可达4m/s以上 

考点:CDFI彩超上岗证第十一章先天性心脏病第十一章先天性心脏病题库
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阅读理解

     Today is November 8th. It's Mary's birthday. She is thirteen. Jim, Mike, Kate and Bill are all her

friends. They want to buy some presents (礼物) for Mary. So they go to the store next to the school.

There are many things in the shop. They buy a big cake, a pencil case and some nice books. They also

want to buy a T-shirt for Mary, but all the T-shirts are too expensive (贵) and they don't have too much

money.

1.How old is Mary today?

A. She is 12.  

B. She is 13.  

C. She is 11.  

D. She is 10.

2. Mary  has_____ friends.

A. four  

B. three  

C. two  

D. only one

3. _____ is near(旁边) the school.

A. Their home  

B. A  hospital  

C. The store  

D. The farm

4. They want to buy ____for Mary.

A. A big cake  

B. a big cake, a pencil case and some nice books

C. a T-shirt  

D. B and C

5.Do Mary's friends have a lot of money?

A. yes, they do    

B. yes, they have    

C. No, they don't  

D. Sorry, I don't know

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何种治疗需要进行根管预备

A.活髓切断术

B.根管充填术

C.根管塑化疗法

D.干髓术

E.直接盖髓术

题型:单项选择题

公安装备是用于实施和保障公安保卫工作的武器、弹药、警用标志、警械及警用技术器材的统称,是公安机关统一指挥、快速反应、整体作战能力的基本要素,是保障公安任务完成的基本条件。( )

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理论哲学的基本内容是().

A.形而上学

B.认识论

C.经验论

D.绝对论

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急救时人工呼吸方法有口对口呼吸、俯卧压背或仰卧()等方法。

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