Peanuts are one of the world’s most nutritious foods. Peanuts contain pound

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问题 Peanuts are one of the world’s most nutritious foods. Peanuts contain pound for pound more protein, vitamins, and minerals than beef liver and more fat than heavy cream. For 【B1】______ 0.5% of Americans, however, peanuts are not so【B2】______; in fact, they’re potentially deadly.
Between 1 and 2% of American adults suffer from food allergies(过敏症). A food allergy occurs when particular proteins in certain foods cause an immune system response, resulting in various 【B3】______. Many foods can cause allergic reactions【B4】______ mild to severe, but peanuts cause fierce allergic【B5】______.
People allergic to peanuts can experience a rapid heartbeat, and in the worst cases, death. Although only a small percentage of people have peanut allergies, they【B6】______ 50% of all food related deaths.
It may seem unbelievable that so much harm can result from such a seemingly innocent, useful food. However, it’s the peanut’s usefulness that makes it so dangerous. Peanuts and peanut products are used in a wide variety of packaged foods, but are not always【B7】______ as an ingredient.
Since it’s possible for even the slightest trace of peanut protein to cause an allergic reaction, these hidden ingredients can cause【B8】______ harm. In some cases, even kissing a person who’s just eaten a "peanuty" food can be dangerous.
If you have a peanut allergy never【B9】______ that foods are made without peanuts. Call the manufacturer and find out. Also, before you move in for a kiss,【B10】______ that he or she is peanut free. [br] 【B6】

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答案 account for

解析此空需填入谓语部分，根据行文时态和复数形式的主语they可知，谓语动词需用原形。account for“(比例)占”。

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Peanuts are one of the world’s most nutritious foods. Peanuts contain pound

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