As we all know, drinking and smoking affect people’s health. A recent study of 17 000 Canadians 【B1】______that people who drink

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问题     As we all know, drinking and smoking affect people’s health. A recent study of 17 000 Canadians 【B1】______that people who drink beer with limits are 【B2】______ than people who drink other alcoholic beverages, such as wine or liquor. Researchers say they don’t yet know 【B3】______why this is so. They find, however, that 【B4】______beer drinkers are reported less illness and appear to have a lower risk of death from heart disease. Health condition seems to be connected to the amount of beer 【B5】______and the regularity of drinking. People who drink beer one or more times a day are reported to get the least 【B6】______of illness. Heavy drinkers, however, people who drink 35 or more pints of beer a week reported more illness. For the sake of their health, many people oppose heavy drinking of beer just as they do with smoking. The war against cigarette smoking is 【B7】______ up again. Legislation was introduced today that would make it 【B8】______ to advertise cigarettes, cigars, or any other tobacco product in any form of media. 【B9】______. The legislation would also prevent tobacco manufacturers from sponsoring sporting events and from giving away free samples. 【B10】______. Cigarette manufacturers insist that the legislation would be useless. In fact, 【B11】______, cigarette smoking has actually increased.
【B3】

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答案exactly

解析 修饰关系题。此处需要填入一个副词修饰动词know。结合录音可知答案为exactly,意为“准确地”。此处意在表达研究者也不知道出现这种现象的确切原因。
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