- Part of the challenge is speed, too, how quickly you can get these answers in terms of getting them in on time.

部分困难也会来自于速度，你多快能做出答案,能否在规定的时间做完。

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He set up a number of challenges (three of which have since been claimed) each with a financial reward reflecting their difficulty: The first to fly a figure-eight course around two markers half a mile apart, the first to fly from England to France and a world speed challenge.

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In the meantime, we can be certain that the scale and speed of this current challenge will only increase as CIOs must rapidly and seamlessly enhance their traditional corporate data with vast new streams of social and mobile data to realize the full potential of these strategic Big Opportunities.

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Photographers will appreciate the ability to easily capture sequential shots that were once a challenge due to the speed limitations of memory.

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