Choosing which diagram to use is often a matter of convenience and personal preference.

选用哪一种图主要取决于是否方便和个人偏好。

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Choosing which to use is a matter of design, trial-and-error, and personal preference.

选择哪一些是设计、反复试验和个人偏好的问题。

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After only a few days of training, the monkeys showed a clear preference for choosing the informative colored target.

不过几天的训练，猴子清晰的表现出对提供信息的颜色目标的偏好。

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In many ways, it's now easier than ever to find a world-class smartphone, but unless you've developed a strong brand preference, choosing one is likely more difficult than ever before.

ENGADGET: 's smartphone buyer's guide: summer 2012 edition

Part of Rio's problem is that voters have long shown a preference for charm over administrative skills when it comes to choosing their politicians.

ECONOMIST: Brazil