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1 原题 题目描述 有一根60m的绳子,每隔3m做一个记号,每隔4m做一个记号,然后把有记号的地方剪断,问绳子共被剪成了几段? A. 25 B. 30 C. 35 D. 40 答案 B 分析 60m的绳子,每隔3m做一个记号(绳子的两端不需要剪),可以做60/3-1=19个 60m的绳子,每隔4m做 阅读全文
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PDF格式公众号回复关键字:ZKGCH003 D开头单词高频 动词 1 decide 决定”或“判定 We'll have to decide what to do next. (我们必须决定下一步该做什么。) The judge decided in favor of the defendant. 阅读全文
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PDF格式公众号回复关键字:ZKGCH002 B开头单词高频 连词 1 but 然而 I like apples, but I don't like bananas. 我喜欢苹果,但我不喜欢香蕉。 2 because 因为 I didn't go to school today because I 阅读全文
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PDF格式公众号回复关键字:ZKGCH001 副词 1 already 已经 She has already finished her homework. (她已经完成了她的作业。) 2 also 也,同样地,而且 They went to the movies, and I also went. 阅读全文
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about(大约)= or so a couple of=several =a few a (large) number of= many a little =a little bit a lot of=lots of= many/much a piece of advice =a suggesti 阅读全文