Be used to (doing) sth Be/get used to (doing) sth 表示“习惯于(做)某事”, 现在依旧在做 He's used to staying up late. 他已经习惯熬夜到很晚了 I've already got used to being a...
our brains’ shift between being focused and unfocused定位至第8段段末处,our brains switch between being focused and unfocused,其中shift是switch的同义替换,由后半句 they tend to be more efficient得出正确答案为B. can bring about greater effcieny, 是对...
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