A vegetarian（素食者）diet may help to protect people against cancer, a UK study suggests. Ana

  A vegetarian（素食者）diet may help to protect people against cancer, a UK study suggests. Analysis of data from 52,700 man and women shows that those who did not eat meat had significantly fewer cancers than those who did.
Published in American Journal of Clinical Nutrition, the findings were worth looking into .Although it is widely remended that people eat some fruits and vegetables every day to reduce their risk of cancer and other diseases, there is very little evidence showing that a vegetarian diet can surely reduce cancers .
But surprisingly, the researchers also found a higher rate of colorectal（直肠的）cancer – a disease connected with eating red meat – among the vegetarians.
Study leader Professor Tim Key, a researcher at the University of Oxford, said no previous study had looked at the diet in this way and that there had been a lot of confusion about the issue.
“It’s interesting – it suggests there might be some reduction in cancers in vegetarians, but we need to look carefully at that”, said the professor.
More work is needed to show the connections between diet and cancer but such studies are very hard to do. Dr Joanne Lunn, a senior nutrition scientist at the British Nutrition Foundation, said the findings highlighted the fact that cancer is a plex disease and many different lifestyle factors play a part in determining a person’s risk.
73. What would be the best title for the passage?
A. Reasons for getting cancers.
B. Vegetarians get fewer cancers.
C. Tips on avoiding cancers.
D. A surprising discovery on colorectal cancer.
74. Why are the findings worth looking into?
A. They can encourage healthy eating.
B. They show that cancer is a plex disease.
C. they show a brand new discovery.
D. They have been published in American Journal of Clinical Nutrition.
75. We can learn from the passage that     .
A. people eating red meat are unlikely to get colorectal cancer
B. the diet is one of the many factors that determine a person’s health
C. the connections between a vegetarian diet and cancer are clear through the research
D. scientists will soon figure out the relationship between the diet and cancerB