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  3. California State Law requires that all bicycle riders under age 18 wear prot

California State Law requires that all bicycle riders under age 18 wear prot

游客2023-07-20  47
问题     California State Law requires that all bicycle riders under age 18 wear protective helmets whenever they ride on public streets or trails. Medical research shows that 85 % of【B1】______brain injuries can be【B2】______ by wearing a bicycle helmet. About 1000 bicycle riders are killed in the U. S. every year, usually in【B3】______with cars, and 75% of them die of head injuries. Many thousands more suffer less severe but still debilitating injuries which are【B4】______ than simple road rash and broken bones. Children can suffer permanent personality changes and learning【B5】______from a brain injury. Common long term【B6】______ includes concentration difficulties, aggressiveness, headaches and balance problems.【B7】______ your great pain if this happens and you have to blame it on your【B8】______to buy a helmet!
    There are many good helmets off the market. You can make your choice based on three criteria:【B9】______.
    A helmet that doesn’t fit, doesn’t sit correctly on your child’s head, not only looks silly but is less than useless. A good reason to purchase the helmet from a bike store is the fact that【B10】______. You shouldn’t expect the sales to help at a discount or department store to correctly perform the service. Some helmets look better than others.【B11】______ [br] 【B6】
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答案 effect
解析 空前的long term和空后的include提示此处所填词为用作主语的名词。空后的difficulties，aggressiveness，headaches，problems等和上文中的less severe but debilitating injuries相呼应，由此推测，此处可能表达车祸对大脑损伤的长期负面影响。effect意为“效果，影响”。
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