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.
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2016届高考英语一轮复习课时规范训练:Module2《Traffic Jam》外研版必修4
2016届高考英语一轮复习课时规范训练:Module6《Films and TV Programmes》
2016届高三英语(北师大版)一轮复习课件:Unit 19 Language19-1
2016届高考英语一轮复习课时规范训练:Module5《A Trip Along the Three Gorges》外研版必修4
2016届高考英语一轮复习课时规范训练:Module2《No Drugs》外研版必修2
2016届高三英语一轮复习题组层级快练:(四十二)外研版选修8
2016届高考英语一轮复习课时规范训练:Module1《Life in the Future》
2016届高考英语一轮复习课时规范训练:Module2《My New Teachers》外研版必修1
2016届高三英语一轮复习题组层级快练:(四十一)外研版选修8
2016届高考英语一轮复习课时规范训练:Module3《The Violence of Nature》外研版必修3
2016届高三英语(北师大版)一轮复习课件:Unit 22 Environmental Protection22-1
2016届高考英语一轮复习课时规范训练:Module1《Our Body and Healthy Habits》外研版必修2
2016届高考英语一轮复习课时规范训练:Module6《The Tang Poems》1 外研版选修8
2016届高三英语(北师大版)一轮复习课件:Unit 20 New Frontiers20-1
2016届高考英语一轮复习课时规范训练:Module4《Which English?》外研版选修8
2016届高三英语一轮复习题组层级快练:(四十)外研版选修8
2016届高三英语一轮复习题组层级快练:(十一)外研版必修2
2016届高考英语一轮复习课时规范训练:Module2《he Renaissance》外研版选修8
2016届高考英语一轮复习课时规范训练:Module2《Fantasy Literature》
2016届高考英语一轮复习课时规范训练:Module5《Great People and Great》
2016届高三英语一轮复习题组层级快练:(十四)外研版必修3
2016届高考英语一轮复习课时规范训练:Module3《Music》外研版
2016届高三英语一轮复习题组层级快练:(五)外研版必修1
2016届高考英语一轮复习课时规范训练:Module2《Developing and Developed》
2016届高考英语一轮复习课时规范训练:Module3《My First Ride on a Train》
2016届高考英语一轮复习课时规范训练:Module6《Old and New》外研版必修3
2016届高三英语一轮复习题组层级快练:(四)外研版必修1
2016届高考英语一轮复习课时规范训练:Module6《Animals in Danger》
2016届高考英语一轮复习课时规范训练:Module5《Newspapers and Magazines》
2016届高三英语(北师大版)一轮复习课件:Unit 18 Beauty18-1