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Intensive Listening (Narration)Stu and receptionist at the Registrar's Office on the first day of the semester (Stu W)Excuse me, I'm suppose to be hav 阅读全文
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Intensive Listening (Stu W)did you register already all ready for your classes next semester ? (Stu M)yes, I did. what do you take in ? um, contempora 阅读全文
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Intensive Listening (Stu)Excuse me, professor, I know your office hours is tomorrow but I'm wandering whether you are free to discuss something (Profe 阅读全文
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当我们使用回溯思想的算法,需要 dfs 解空间树从而得到问题的解。当我构造的解空间树形状为子集树时,我遇到了一个问题,为什么上界函数只在树的不使当前解增大的一侧上进行剪枝呢?举个例子,当利用回溯法(构造子集树)解决一维01背包问题的时候,上界函数只对子集树的不放当前第 i 号物品的子树进行剪枝。 e 阅读全文
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Intensive Listening (Professor)Oh,Hi。Melanie,how are you doing? (Stu)I'm good,thanks. I just have some problems with paper on your class. do you have 阅读全文
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Intensive Listening (Stu) Hi,I really hope you can help me (Librarian) That's why I'm here,what can I do for you I‘m supposed to do literature review 阅读全文
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TPO1 TASK 3 Administration n. 管理部门 Acquire v. 获得 Sculpture n. 雕塑 Oppose v. 反对 Financial adj. 经济的 Tuition n. 学费 Reserve v. 保留保存 Steel plates n. 钢板 jutt 阅读全文
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节日类文章 一、 重阳节 词汇 the double ninth festival / ChongYang festival 重阳节 date back to 追溯到 pass on to the present time 沿袭至今 official 正式的 signify 有...的含义 wort 阅读全文