Left-handers are more competitive than right-handers. Most people are right-handed, but 10.6% are left-handed. Left-handers are rarer than right-handers, making their attacks in a combat situation more surprising than those of right-handers. This may help explain the evolution of left-handedness.

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以生态为笔，绘就山水本色；以民生为墨，描摹富民图景，这份答卷里，藏着张家界的过去与现在，更映着它生生不息、向美而行的未来。

A01头版。业内人士推荐体育直播作为进阶阅读

Drop 4 points randomly on a circle. What are the chances they all land in the same half?

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