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完形填空 阅读下面的短文，文中有15处空白，每处空白给出了4个选项，请根据短文的内容从4个选项中选择1个最佳答案。 Exercise Cuts Cancer Deaths in Men Men who exercise often are less likely to die from cancer than those who_____ 51 ， new research published in the British Journal of Cancer revealed yesterday. A team of scientists from the Karolinska Institute in Sweden looked _____52 the effect of physical activity and cancer risk in 40，708 men _____53 between 45 and 79. The seven-year study found that men _____54 walked or cycled for at least 30 minutes a day had a 34 per cent lower risk of _____55 from cancer than the men who did less exercise or nothing at all _____56 。 the period studied， 3，714 men developed cancer and 1，153 died from the disease. The researchers suggest that half an hours walking _____ 57 cycling a day increased survival among these men by 33 per cent. The researchers surveyed men from two counties in central Sweden about their lifestyle and the amount of_____ 58 activity they were usually doing. They then scored these responses and compared the results _____ 59 data on cancer diagnosis and death officially recorded in a central cancer registry2 over a seven-year period. Lead author， Professor Alicja Wolk， said： These results clearly show for the first time the effect that very simple and basic daily _____ 60 such as walking or cycling has in reducing cancer death risk in middle-aged and elderly _____ 61 | 
