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The MX Master 4 is the latest evolution in a line of pioneering mice that dates back more than 20 years and has long been the mouse to beat for everything but hardcore PC gaming. Having given it a magnetic free-spinning scroll wheel, plenty of buttons and precise tracking, now Logitech is trying something different for its seven-generation: the ability to tap back at you.
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I'm in Shadow Robot's north London headquarters, looking at their latest robotic hands.
开发式扶贫方针是中国特色减贫道路的鲜明特征。