问题 单项选择题 A1型题

急性糜烂出血性胃炎的常见病因不包括()

A.非甾体抗炎药

B.脑外伤

C.乙醇

D.幽门螺杆菌感染

E.严重烧伤

答案

参考答案:D

解析:

脑外伤时,机体在严重外伤的情况下会产生应激性溃疡、糜烂性胃炎。急性糜烂性胃炎的常见病因包括:

1、外源性因素某些药物如非甾体类消炎药阿司匹林、保泰松、吲哚美辛、肾上腺皮质类固醇、某些抗生素、酒精等,均可损伤胃的粘膜屏障,导致粘膜通透性增加,胃液的氢离子回渗入胃粘膜,引起胃粘膜糜烂、出血。肾上腺皮质类固醇可使盐酸和胃蛋白酶的分泌增加,胃粘液分泌减少、胃粘膜上皮细胞的更新速度减慢而导致本病。

2、内源性因素包括严重感染、严重创伤、颅内高压、严重灼伤、大手术、休克、过度紧张劳累等。在应激状态下,可兴奋交感神经及迷走神经,前者使胃粘膜血管痉挛收缩,血流量减少,后者则使粘膜下动静脉短路开放,促使粘膜缺血缺氧加重、导致胃粘膜上皮损害,发生糜烂和出血。

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根据短文内容,完成表格。
     My name is Jane. My job is to write stories and newsletters for a magazine. I love traveling
and hope to visit Great Britain one day. I'd like a pen pal from London, who is interested in
discussing the differences between Europe and Asia. I love listening to pop music and playing
football.
     I am Manuel. I'm a businessman and have a large company with many workers and clerks.
I would like to find a pen pal who is also a businessman and lives in North America. I like
using the Internet.
     I am working in a university. I speak English, French and Russian. My family name is Jackson
but my students usually call me Sarah. I'd like a pen pal who is interested in language learning
working in Oxford University. I don't like using computers for learning and I believe that true
language learning can only happen in a classroom. 
    I am Peter and interested in the differences between East Europe and North America. I love riding
my horse Jackie and listening  to jazz. I usually get up at 7 o'clock and go to school around 7:30 in
the morning. I want to find a pen pal who has the same interest as me living in Sydney. 
    Cindy is my first name. I am working in a travel agency. Sometimes I am called Mr Guide as I am
working. I'd like to find a pen pal who comes from Europe. I like playing the piano and listening to
jazz. I am interested in history, but I don't like discussing languages.
First name What to do Likes Pen-pal from
Jane 1.______Travelling, pop music, and playing football London
Manuel Businessman Using 2.______ North America
3._____Teacher Teaching Oxford University
Peter Student Riding his horse and listening to jazz 4.______
Cindy5.______Playing the piano, listening to jazz, history Europe
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