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

游客2023-07-25 99

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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