Internal combustion engines show an inherent tradeoff between power and fuel efficiency: if a car can race from zero to 60 mph faster, the less fuel efficient its engine is over the time.
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Aif a car can race from zero to 60 mph faster, the less fuel efficient
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Bracing from zero to 60 mph faster, it is that much less fuel efficient
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Cthe faster the car can race from zero to 60 mph, the less fuel efficient
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Dthe faster the car can race from zero to 60 mph, it is that much less fuel efficient
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Ewhen the car can race from zero to 60 mph faster, the less fuel efficient it is
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正确答案: C