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.
2017届高考英语(重庆专用)二轮精练:必修2 unit2 The Olympic Games单元测试
2017届高考英语(重庆专用)二轮精练:必修4 unit4 Body language单元测试
2017届高考英语(重庆专用)二轮精练:必修1 unit5 period 2
2017届高考英语(重庆专用)二轮精练:必修3 unit2 Healthy eating单元测试
2017届高考英语(重庆专用)二轮精练:必修3 unit4 period 2
2017届高考英语(重庆专用)二轮精练:必修1 unit4 period 1
2017届高考英语(重庆专用)二轮精练:必修3 unit1 period 1
2017届高考英语(重庆专用)二轮精练:必修2 unit3 period 2
2017届高考英语(重庆专用)二轮精练:必修2 unit5 period 2
2017届高考英语(重庆专用)二轮精练:必修1 unit3 period 2
2017届高考英语(重庆专用)二轮精练:必修2 unit1 period 1
2017届高考英语(重庆专用)二轮精练:必修3 unit4 Astronomy the science of the stars单元测试
2017届高考英语(重庆专用)二轮精练:必修3 unit3 period 2
2017届高考英语(重庆专用)二轮精练:必修3 unit4 period 1
2017届高考英语(重庆专用)二轮精练:必修2 unit1 period 2
2017届高考英语(重庆专用)二轮精练:必修4 unit2 period 1
2017届高考英语(重庆专用)二轮精练:必修2 unit4 Wildlife protection单元测试
2017届高考英语(重庆专用)二轮精练:必修4 unit2 period 2
2017届高考英语(重庆专用)二轮精练:必修1 unit5 Nelson Mandela—a modern hero单元测试
2017届高考英语(重庆专用)二轮精练:必修4 unit1 period 2
2017届高考英语(重庆专用)二轮精练:必修1 unit4 period 2
2017届高考英语(重庆专用)二轮精练:必修2 unit4 period 2
2017届高考英语(重庆专用)二轮精练:必修4 unit3 period 2
2017届高考英语(重庆专用)二轮精练:必修3 unit1 Festivals around the world单元测试
2017届高考英语(重庆专用)二轮精练:必修1 unit5 period 1
2017届高考英语(重庆专用)二轮精练:必修2 unit1 Cultural relics单元测试
2017届高考英语(重庆专用)二轮精练:必修1 unit4 Earthquakes单元测试
2017届高考英语(重庆专用)二轮精练:必修4 unit1 Women of achievement单元测试
2017届高考英语(重庆专用)二轮精练:必修2 unit5 Music单元测试
2017届高考英语(重庆专用)二轮精练:必修4 unit3 A taste of English humour单元测试
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