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...
【解析】该题考查作者的观点,根据题干中的关键词可定位到第六段第一句“Finally, because automation threatens to widen the gap between capital income and labor income, taxes and the safety net will have to be rethought”。由该句可知,由于自动化加大了资本...
解析:从语法上判断,本空的词应该是过去分词,与前面的are 构成被动语态,The Amish are often perceived by other Americans to be relics of the past 意为:阿米什人经常被其他的美国人看作是过去的遗物。 34. [B] conveniences 解析:从语法上判断,本空应该填入一个名...
A. not to do B. not to be done C. not to have done D. not having done 3、I' m sorry I couldn't get in touch with him before he left, I ___ him earlier. A. had a telephone B. have phoned C. should have phoned D. should be phoned 4、He...
He gets up at 5:30 every morning and go to bed at 10:00 every night. 4.作业每天都做。(用被动语态) Homework is done everyday. 5.我们家附近有一家医院,这对我们很必要。 There is a hospital nearby which is necessary for us. 6.我的航班于上午10点钟起飞。
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