此外，研究还发现，食用牛奶巧克力和黑巧克力还有助于增强冲动控制能力，提高反应速度。

And consumption of milk and dark chocolate was associated with improved impulse control and reaction time, according to the research.

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经过了20年的光阴，旧填充物表面有95%的汞元素已经发生了化学反应，它变成了黑辰砂(beta - mercury sulfide)，一种黑色的固体。

After two decades, 95 percent of the elemental mercury on the surface of a filling had gone through a chemical reaction. It became beta-mercury sulfide, a black-colored solid.

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大阪大学机器人学家石黑浩制造了他自己的机器双胞胎，以考察人们在面对格外逼真的机器时作何反应。

Roboticist Hiroshi Ishiguro of Osaka University built his own mechanical twin to see how humans react to extraordinarily lifelike machines.

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