【单选题】【消耗次数：1】
若使汽车的最高车速小于发动机最大功率对应的车速，则（）。
①
汽车的动力性和燃油经济性都变好
②
汽车的动力性变差，燃油经济性变好
③
汽车的动力性变好，燃油经济性变差
④
汽车的动力性和燃油经济性都变差
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相关题目
【单选题】
若使汽车的最高车速小于发动机最大功率对应的车速，则（ ）。
①
汽车的动力性和燃油经济性都变好
②
汽车的动力性变差，燃油经济性变好
③
汽车的动力性变好，燃油经济性变差
④
汽车的动力性和燃油经济性都变差
【简答题】
如何从改进汽车底盘设计方面来提高燃油经济性？
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