![TheCrownePlazaHotelinCopenhagenisofferingafreemealtoany...]( "TheCrownePlazaHotelinCopenhagenisofferingafreemealtoany...")
- 问题详情：TheCrownePlazaHotelinCopenhagenisofferingafreemealtoanyguestwhoisabletoproduceelectricityforthehotelonanexercisebikelinkedtoagenerator(发电机).Theideaistogetpeoplefitandreducetheircarbonfootprint(足迹).Guestswillhavetoproduceatleast10watthour...
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