问题 单项选择题

男,26岁,上肢血压180~200/100~110mmHg.下肢血压140/80mmHg,体检:肩胛间区可闻及血管杂音,伴震颤,尿17-酮,17-羟类固醇正常,尿苦杏仁酸正常。其高血压原因应考虑为继发于

A.嗜铬细胞瘤

B.皮质醇增多症

C.原发性醛固酮增多症

D.单侧肾动脉狭窄

E.主动脉缩窄

答案

参考答案:E

解析:[解题思路] 主动脉狭窄多数为先天性血管畸形,少数为多发性大动脉炎所引起,特点为上肢血压增高而下肢血压不高或降低,呈上肢血压高与下肢血压的反常现象。在肩胛间区、胸骨旁、腋部可有侧支循环动脉的搏动和杂音或腹部听诊有血管杂音。胸部X线摄影可显示肋骨受侧支动脉侵蚀引起的切羞。主动脉造影可确定诊断。

阅读理解

阅读理解

     It may happen sooner or later:when books, toys, songs, snacks, video games, and DVDs have lost

their charm, your child begins to say, "I'm bored!Tell me a story, please."Your mind goes blank and your

child looks at you with great expectation.What should you do?

     You may not realize it, but you have a wealth of stories to share.Personal stories, particularly from your childhood or from books you've read, are good starters.

     Some kids enjoy stories about characters from their favorite books.Whether you take Little Chick on a walk through the barnyard or Firefighter Bob on an exciting drive through the city, don't worry too

much about plot(故事情节). Young kids will enjoy them very much.

     Some kids can appreciate a funny twist, so take a favorite story and turn it upside down by changing

the setting, characters, or plot.Make your child the main character in a funny adventure that fits his

interests.

     When did you lose your first tooth? Who was a favorite teacher of yours? Thinking about Mommy or Daddy as a little kid may excite the imagination.And there's nothing more delightful than a story about the

time a parent did some tricks and their results.Kids delight in these short experiences of a past that are

connected to them.

     When you tell stories, you show how to put words together to make meaning.You share something

new about yourself that your kids may find interesting or exciting and that might be a starting point for

questions and discussions.Above all, you develop a love of words that kids will have for life.

     So take a deep breath and begin:"Once upon a time..."

1. At present most children probably have the least chances to________.

A. watch video games  

B. play with toys

C. have snacks  

D. listen to stories

2. To tell children stories, parents are advised to________.

A. use their imagination to invent some stories

B. learn about their children's interests

C. depend on wide reading

D. choose wellorganized stories in terms of plot

3. From the passage we learn that________.

A. children enjoy hearing stories about their parents

B. children can develop an adventurous spirit by listening to stories

C. children sometimes like to see their parents make mistakes

D. parents can learn to tell lies by telling their children stories

4. What is the biggest benefit that children can get by listening to stories?

A. It shortens the distance between parents and children.

B. It develops the imagination of children.

C. It develops children's love for language.

D. It encourages children to question things.

单项选择题