英语六级

单选题

A．A head—fight．
B．A chain cover．
C．Hand brakes．
D．Thicker tires．

参考答案：B进入在线模考
What invention described by the speaker will make caring for bicycles in winter easier?
【解题思路】四个选项 “车头灯”、“链盖”、“手刹”、“更厚的轮胎”都是自行车部件，听音时要重点听清相关内容及问题。
【解析】录音提到自行车保养的问题后马上用but转折，指出一家自行车店的老板创新性地造出了全封闭式的链盖。自行车链条被完全密封起来，骑车人将只需每六个月对车链进行清理和上油，而不是以前的每周一次，这就解决了自行车需要频繁保养的问题，因此答案为B。

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A．When they grow up in a particular set of surroundings．
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A．They are frequently questioned by people unwilling to accept them．
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