单词:reflex circuit arrangement
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This is Scientific American's 60-Second Science. I'm Steve Mirsky . Got a minute ? February 28th is International Sword Swallowers Awareness Day, according to practitioner Dan Meyer, who recently demonstrated the technique at the AAAS meeting in Chic
发表于:2018-12-24 / 阅读(66) / 评论(0)
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今天我们要讲几个在美国总统大选的竞选阶段常会用到的习惯用语。美国总统大选每四年举行一次。在大选年的前一年,准备竞争本党总统候选人提名的人士就已经在各州积极展开竞选活动了,
发表于:2019-01-16 / 阅读(124) / 评论(0)
美国习惯用语
A new flexible smartphone design could change the way users interact with their devices. ReFlex, developed by researchers at Queen's University, uses 'bend sensors' to control app interactions, and simulates physical forces through detailed vibration
发表于:2019-02-17 / 阅读(59) / 评论(0)
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