leebei

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港珠澳大桥通车仍无时间表

为何电池技术就是没有突破? | 雷锋网

Is It Time to Accept That We're Alone in the Universe?

We have yet to discover any signs of aliens, a troubling observation that has led to much speculation. One possible solution to the Great Silence is …

APEC会议13年后重返中国有何意味?

中国时隔13年再办APEC:从参与者到引领者的蜕变

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What Would Happen If You Peed Into a Particle Accelerator?

I have visited CERN and they have sections of the accelerator you can look at. It's a mess—to you and me—wires and tubes. This has not been built for …

Your Shot Snow Photos

极致进化:无腿的蛇如何成为顶级掠食者?

酷炫动图(三):数学篇

酷炫动图(四):更多的数学