Ulcers Even though ulcers appear to run in families, lifestyle plays more of a role than genetic factors in causing the illness, according to a report in the April 13th Journal of Internal Medicine. In particular, smoking and stress in men and the regular use of pain-releasing medicines in women were linked with an increased risk of developing an ulcer. Raiha and colleagues studied data from more than 13,000 pairs of twins to examine the roles of genetic and environmental factors in the origin of peptic ulcer disease, they explain. Both twins were more likely to develop an ulcer if the pair were genetically the same as compared with a pair of fraternal twins, suggesting that there must be some genetic susceptibility to ulcer development. 1. According to the passage, which of the following is a very likely cause of ulcer in men? B) Drinking and smoking. D) Use of a certain medicine. A) Hereditary factors. C) Environmental factors. 3. In relation to ulcers, experts study twins in order to examine B) the roles of environmental factors. D) the roles of brotherhood. A) A clean environment with no smoke and dust surrounding the living area. C) Factors shared by family members such as genes and the food they eat. 5. The passage argues that B) ulcers are related to lifestyle. D) ulcers are caused by pylori infection.
上一篇: 职称英语综合类的阅读理解练习题(41)
2016秋湘少版英语五年级上册Unit 5《Can I have a pet》ppt课件2
2016秋湘少版英语五年级上册Unit 4《Can I use your pencil please》ppt课件4
2016秋湘少版英语五年级上册Unit 6《Which one do you want》ppt课件3
2016秋湘少版英语五年级上册Unit 8《Lingling helps her parents》ppt课件2
2016秋湘少版英语五年级上册Unit 7《What time do you get up》ppt课件4
2016秋湘少版英语五年级上册Unit 5《Can I have a pet》ppt课件3
2016秋湘少版英语五年级上册Unit 3《Do you want some rice》ppt课件4
2016秋湘少版英语五年级上册Unit 6《Which one do you want》ppt课件2
2013湘少版五上《Unit 12 The Spring Festival》ppt课件1
2013湘少版五上《Unit 2 Do you want some rice》ppt课件
湘少版英语五下《Unit 8 That’s not mine》PPT课件
2013湘少版五上《Unit 1 I’d like a cold drink》ppt课件1
2016秋湘少版英语五年级上册Unit 4《Can I use your pencil please》ppt课件3
2016秋湘少版英语五年级上册Unit 9《What’s your hobby》ppt课件
2016秋湘少版英语五年级上册Unit 9《What’s your hobby》ppt课件1
2016秋湘少版英语五年级上册Unit 8《Lingling helps her parents》ppt课件3
2013湘少版五上《Unit 2 Do you want some rice》ppt课件1
2013湘少版五上《Unit 13 I brush my teeth every day》ppt课件
湘少版五上《Unit 12 The Spring Festival》课件包(2个文件)
2016秋湘少版英语五年级上册Unit 8《Lingling helps her parents》ppt课件1
2016秋湘少版英语五年级上册Unit 4《Can I use your pencil please》ppt课件2
2016秋湘少版英语五年级上册Unit 7《What time do you get up》ppt课件5
2013湘少版五上《Unit 10 What does that sign mean》ppt课件
2016秋湘少版英语五年级上册Unit 4《Can I use your pencil please》ppt课件1
2016秋湘少版英语五年级上册Unit 6《Which one do you want》ppt课件1
2016秋湘少版英语五年级上册Unit 7《What time do you get up》ppt课件7
2016秋湘少版英语五年级上册Unit 7《What time do you get up》ppt课件2
2013湘少版五上《Unit 1 I’d like a cold drink》ppt课件4
2016秋湘少版英语五年级上册Unit 9《What’s your hobby》ppt课件2
2016秋湘少版英语五年级上册Unit 7《What time do you get up》ppt课件3