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题目材料:

Since running an automobile engine requires fuel, many drivers turn off the engines in their cars when they make a short stop. Yet, scientific studies demonstrate that, in those cases, the cars actually consume more fuel than they would have if the drivers had left the engines running.

Which one of the following, if true, most contributes to an explanation of the apparently paradoxical results of the studies?
  • AStarting an automotive engine consumes more fuel than does running the engine for a short time.
  • BThe more often a car engine is started, the less fuel is consumed in bringing the motor up to its running temperature.
  • CContinual stopping and starting of an automotive engine can decrease the output of the engine.
  • DContinually running an automotive engine prevents the release of dangerous gases into the atmosphere.
  • EMany people use their cars for commuting to and from their work places without making any short stops.

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