【单选题】
下面的短文有15处空白，请根据短文内容为每处空白确定1个最佳选项。
People who eat more than 160 grams of red or processed meat a day are 35 percent more likely to develop bowel cancer than those who eat less______(51) 20 grams a day, according to one of the biggest nutrition investigations ever carried out.
TheEuropean Prospective Investigation intoCancer and Nutrition followed 478,040 men and women______(52) 35 to 70 from 10European countries.
All subjects were free of cancer at enrollment between 1992 and 1998, but ______(53) an average follow-up of almost 5 years 1,329 bowel cancers had been reporteD、
The subsequent analysis, published in the Journal of the NationalCancer Institute, confirms the long-held suspicion______(54) high intakes (纳入量) of red meat are associated with increased bowel______(55) risk.
After taking into consideration factors like age, sex, height, weight, energy intake, physical activity, smoking, and alcohol consumption, the investigators found that bowel cancer was______(56) with intake of red and processed meat but not chicken.
Risk of bowel cancer dropped with increasing intake of fish.Eating more than 80 grams a day of fish was associated______(57) a 31 percent reduction in risk compared with eating less than 10 grams a______(58).
Subjects with high red meat and low fish intake were at 63 percent higher risk of bowel cancer compared with subjects with low red meat and high fish______(59). In addition, the risk of developing the disease was increased for______(60) people who ate a low fibre diet.
SheilaBingham, study investigator at the UK’s Medical ResearchCouncil nutrition unit, said: "People have suspected for some time that high levels of red and processed meat______(61) risk of bowel cancer, but this is one of the largest studies worldwide and the first fromEurope of this type to show a______(62) relationship."
She added in a statement: "The overall picture is very consistent for red and processed meat and fibre across all the______(63) populations studieD、"
Study coordinator,Elio Riboli, of the World Health Organisation InternationalAgency for Research intoCancer, said: "Other risk factors for______(64) cancer include obesity (肥胖) and lack of physical activity. Smoking and excess alcohol may also play a ______(65). These factors were all taken into account in the analysis."
B．after
C．since
D．when
网考网参考答案：B
网考网解析：
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