The Relationship between IQ and Being a VegetarianA Southampton

The Relationship between IQ and Being a Vegetarian
A Southampton University team found that people who were vegetarians（素食主义者）by 30 had recorded five IQ points higher on average at the age of 10. Researchers said it could explain why people with a higher IQ were healthier as a vegetarian diet was linked to lower heart disease and obesity（肥胖）rates. The study of 8,179 people was reported in the British Medical Journal.
Twenty years after the IQ tests were carried out in 1970, 366 of the participants said they were vegetarians—although more than 100 reported eating either fish or chicken.
Men who were vegetarians had an IQ score of 106, compared with 101 for non-vegetarians ； while female vegetarians averaged 104, compared with 99 for non-vegetarians. There was no difference in the IQ scores between strict vegetarians and those who said they were vegetarians but reported eating fish or chicken.
Researchers said the findings were partly related to better education and higher class, but it remained statistically significant after adjusting for these factors.
Vegetarians were more likely to be female, to be of higher social class and to have higher academic or vocational qualifications than non-vegetarians. However, these differences were not reflected in their annual income, which was similar to that of non-vegetarians.
Lead researcher Catharine Gale said, “The findings that children with greater intelligence are more likely to report being vegetarians as adults, together with the evidence on the potential benefits of a vegetarian diet on heart health, may help to explain why a higher IQ in childhood or adolescence is linked with a reduced risk of coronary heart disease in adult life.”
But Dr.Frankie Phillips of the British Dietetic Association said, 【“It is like the chicken and egg, " Do people become vegetarians because they have a very high IQ or is it just that they are clever enough to be more aware of health issues?】
2.It was found in the research that ______.
A、most of the participants became vegetarians 20 years after the IQ tests were carried out
B、vegetarians who ate fish or chicken were of similar intelligence with strict vegetarians
C、female vegetarians were more likely to have higher annual income than non-vegetarians
D、vegetarians were more likely to have higher annual income than non-vegetarians
【正确答案】：B
【题目解析】：事实细节题。根据第二段可知,A选项表述错误。根据第三段第二句”There was no difference in the IQ scores between strict vegetarians and those who said they were vegetarians but reported eating fish or chicken”可知，严格的素食者和那些吃鱼或者鸡的素食者的智力没有差别，故B项表述与原文一致。根据第五段可知，素食者与非素食者的差别并未体现在年收入上，因此C项与D项均表述错误。据此分析该题正确答案为B。