2. 外语
  3. Cigarette smoking kills. That we know. So, manufacturers made【B1】______cigarettes as a safer smoking choice—safer than tobacco.

Cigarette smoking kills. That we know. So, manufacturers made【B1】______cigarettes as a safer smoking choice—safer than tobacco.

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问题     Cigarette smoking kills. That we know. So, manufacturers made【B1】______cigarettes as a safer smoking choice—safer than tobacco. E-cigarettes contain the drug nicotine (尼古丁)like cigarettes. But they do not use tobacco. And you do not light them. They are【B2】______by battery. So, if e-cigarettes are so safe, why have poison control centers around the United States seen an【B3】______in telephone calls about e-cigarette poisonings? The answer is children. Most of the calls are from people【B4】______children who have played with the devices. In the period of one month this year, the United States Centers for Disease Control say 215 people called the Center with e-cigarette【B5】______ . More than half of these calls were for children aged five and younger. The devices【B6】______had made them sick. Tim McAfee is director of the CDC’s office on Smoking and Health. He says the problem is【B7】______. Meaning, the U.S.federal government does not control e-cigarettes even though they contain liquid nicotine. Mr. McAfee adds that liquid nicotine is a well-known danger. Mr. McAfee explains that nicotine poisoning happens when the【B8】______gets into the skin, gets into the eyes or is swallowed. Even a small amount, he says, can make a person sick. Nicotine poisoning can cause stomach pain or a sense of unbalance. Headaches are also【B9】______of nicotine poisoning. And too much nicotine can kill. Tim McAfee says e-cigarettes do not create the level of risk to people that tobacco products do. He【B10】______that almost 500, 000 Americans die each year from cigarettes.
【B9】
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答案common signs
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大学英语四级

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