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由A地到B地,中间有一段扶梯,总路程和扶梯长度是固定的,为赶时间全程都在行走(包含扶梯上),中途发现鞋带松了,需要停下来绑鞋带.请问在扶梯上绑鞋带和在路上绑鞋带两种方式比较()。
- A、路上绑鞋带,全程用时短
- B、扶梯上绑鞋带,全程用时短
- C、用时一样
- D、和扶梯长度,绑鞋带具体用时有关
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更多 “由A地到B地,中间有一段扶梯,总路程和扶梯长度是固定的,为赶时间全程都在行走(包含扶梯上),中途发现鞋带松了,需要停下来绑鞋带.请问在扶梯上绑鞋带和在路上绑鞋带两种方式比较()。A、路上绑鞋带,全程用时短B、扶梯上绑鞋带,全程用时短C、用时一样D、和扶梯长度,绑鞋带具体用时有关” 相关考题
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