15．有史以來(lái)of all time．
分析 of all time 有史以來(lái)
解答 答案：有史以來(lái) of all time，考查固定詞組．This is my favourite song of all time．這是我有史以來(lái)最喜愛(ài)的一首歌．
點(diǎn)評(píng) 對(duì)于單詞短語(yǔ)的識(shí)記，要從詞義著手，理解詞性和常見(jiàn)用法或搭配，并能在語(yǔ)境中靈活運(yùn)用
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Recently，two researchers，Jose Milan and Michele Tavella from the Federal Polytechnic schooling Lausanne，Switzerland，demonstrated（展示）a small robotic wheelchair directed by a person's thoughts．
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4．On keeping a Diary in English
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