The "new set of wheels" that bicycle riders had to get used to was ______.

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The "new set of wheels" that bicycle riders had to get used to was ______.

A. the new tires on their bikes

B. the automobile

C. the streetcar

D. the bicycle itself

参考答案:

B 46.第二段。自行车要适应与汽车共用车道,这里指的是汽车。选项 B是正确的。