共查询到20条相似文献,搜索用时 15 毫秒
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<正>Today an old man,who was previously begging on the street,becomes a free person without any worries about food and accommodation.The former slave has become a public servant of the state.60 years ago he always had a hungry stomach,but today he has a happy life.Tsega, the old Tibetan man,has endless stories recalling his more than half a century of life experiences. 相似文献
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Erik T. Verhoef 《Journal of regional science》2001,41(4):681-694
Ohta (2001) claims to have resolved a die-hard controversy on traffic congestion modeling by defining an inverse aggregate demand function that has traffic density as its argument—in Ohta's terminology the 'primitive term.'Using this demand function, Ohta shows that 'hypercongestion' may very well be an optimal stationary state. This contribution argues that at least if what road users demand is completed trips, and if time spent on the road while traveling implies a cost, then Ohta's approach is fundamentally flawed. Also the conclusion that hypercongestion can be optimal is no longer valid. 相似文献
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Liu Li 《中国西藏(英文版)》2018,(1)
正Chen Wen is extremely fond of edible fungus.Whenever he speaks of it,hecan go on for hours,even while standing in harsh conditions on the QinghaiTibet Plateau nearly 3,000 meters above sea level with the temperature nearly freezing.His eyes are always sparkling and full of enthusiasm,with a powerful dream fueling him from the bottom of his heart.He hopes that one day,Richi Village's Nyagchu 相似文献
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《中国西藏(英文版)》2015,(4)
<正>When the sun disperses its brilliant rays over the Potala Palace on a nice day,the whole city of Lhasa takes on an air of warmth and harmony.In their ancient Tibetan robes idly turning their Mani wheels,elderly people either go for a walk on the Barkor Street or have a rest at a sweet tea shop.Tourists coming in from all over the world often like to 相似文献
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