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Middle East crisis – live updates
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The Starship upper stage separated from its Super Heavy booster nearly four minutes into flight as planned.
Mosquitos began biting humans more than a million years ago | An analysis of 38 modern mosquitoes’ DNA suggests an ancestral mosquito species developed a preference for feeding on early humans between 2.9 and 1.6 million years ago,
· 周杰 · 来源：tutorial资讯