History of Bluetooth A thousand-year-old king's name is "Bluetooth". One of his teeth is really blue. So the question is, why did the f…
Many tourists were born during the period of one thousand years of Muslims. During this time, tourism was a kind of certification in the pursuit of e…
Often the sounds of birds seem to be melodious and heart-warming, although it is not enough for ordinary people to understand the mysterious conversa…
What happened to dinosaurs on their last day on earth? Fossils buried in the rocks in the US state of North Dakota are evidence that the last dinosau…
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