问题 单项选择题 A1/A2型题

下列检查结果中,对鉴别单纯性肠梗阻与绞窄性肠梗阻最有帮助的是()

A.腹平片可见肠管扩张,多个阶梯状液-气平面

B.腹腔穿刺抽出血性物

C.血白细胞明显升高,分类中性超过90%

D.血气分析血氧分压降低

E.血生化检查电解质紊乱

答案

参考答案:B

解析:当出现下列情况时应考虑绞窄性肠梗阻可能:①发病急骤、进展快;腹痛剧烈,持续性或阵发性转为持续性,呕吐出现早、重、频;②早期出现休克或抗休克治疗后改善不明显;③有明显腹膜刺激征和全身炎性反应;④腹部不对称隆起或触及孤立胀大肠襻;⑤血性呕吐物、血性胃肠减压液、血性黏液便、血性腹腔渗出物;⑥腹部X线片示孤立胀大肠襻不随时间而改变位置、有假肿瘤状影或肠间隙增宽。

阅读理解

阅读短文,选择正确的答案。

  <1>HOUSE TO RENT

  Older house to rent in the city centre. One bedroom and one kitchen. Near important stations. Buses

  pass backdoor. $ 47s/month.  Phone 332---0178.

  <2 > WEI.COME TO OUR DANCE CLUB

  Free lessons. Every Saturday evening a different lesson every week. Bring your favourite CDs, Call

  Bridget at:520+--1928

  <3> SWIMMING LESSONS F()R STUDENTS

  Newquay Training Centre

  July 8~10

  <4>WORK WANTED

  Strong boy pleased to work in garden or do housework 3 hours a week.

  See Tom.

根据前面广告的内容及以下各题中所给提示,选择正确答案。

Look at ad <1>

Susan is looking for a house to rent. It doesn't matter how old and how expensive it is.

  She's got to study for her exams, so the house must be quiet.            

1. Susan doesn't want to rent the house because _____.

A. it's too old

B. it's too expensive

C. there is only one bedroom

D. it's too noisy

Look at ad<2>

Mum: Look at that ad for the dance club! The lessons are free. You can join it!

Daughter: My dear mum! You haven't read it carefully. On Saturday, I have an English lesson in the 

morning, an art lesson in the afternoon and a math lesson in the evening. l want some free time.

2. Why can't the daughter join the club?

A. She has no CDs.

B. She has an art lesson.

C. She has an English lesson.

D. She has a math lesson

Look at ad <3>

Mr Klip's children are going to learn swimming. They'll have a holiday from July l to July14.

3. How long will it take the children to learn to swim in the Centre?

A. 3 days.                    

B. 4 days.

C. 1 week.                    

D. 2 weeks.

Look at ad <4>

Nick has always wanted to work in a garden. He thinks it's an exciting place. It's hard work, but he can do it.

4. What does he need to do if he chooses to do the garden work?

A. To help Tom with his lessons.

B. To clean the kitchen and the rooms.

C. To look after the flowers and grass.

D. to do the washing for 3 hours a week.

单项选择题