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A killer bug spreading across the globe like wildfire sounds like something out of a bad sci- fi film. But while this is still the stuff of fantasy, microbiologists are concerned about the news of an enzyme with the potential to convert all bacteria
七个忠告,助你感情长久 When you think about sustainability, what comes to mindglobal warming, going green, doing your part to lessen your carbon footprint? How about relationships? We should compost old relationships and only get involved
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The rollout of the gleaming craft marks Virgin Galactic's return to the race to become the world's first major private space tourism company. The new passenger spacecraft is expected to take thrill-seekers, researchers and commercial customers on sho