As for Onions, I noticed on my last trip to India around Christmas that the demand curve was, indeed, downward sloping.

至于葱，在上次圣诞节前后我去印度时，发现需求曲线实际上是向下倾斜的。

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Besides discussing China's economic recovery and ways to boost domestic demand, he says a big focus of this trip is potential cooperation between the World Bank and China in Africa.

他说，除了讨论中国的经济复苏和促进内需的方法以外，他这次访问的一个重要焦点是探讨世行和中国在非洲展开合作的可能。

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The mostimportant thing is safety when guest travel or on business trip, it is thebasic demand which the guest focus on. Pay attention to the following aspects.

客人在外出差或旅游最重要的就是安全，这也是客人所关注的最基本需求，照顾好客人的安全可以关注以下几方面。

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They are pushing libraries of on-demand films to save people a trip to the video store, and electronic programme guides to make channel-surfing easier.

ECONOMIST: Another push to sell pay-television to the Germans

Indeed, Uber passengers do not know the final cost of the ride until after it is over because the service not only takes into account the distance and duration of the trip, but also uses dynamic pricing in which rates change depending on supply and demand conditions.

FORBES: An 'Uber' Problem for Cities: Balancing Innovation with Regulation