2021 硕士生英语SPOC(余隽)(华中农业大学)1465465484 最新满分章节测试答案
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本课程起止时间为:2021-09-03到2022-01-02
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Lecture 1 Academic self-introduction 第一讲单元测验
1、 问题:The self-introduction speech is usually called at ____.
选项:
A:family setting
B:informal setting
C:graduation ceremony
D:business and academic setting
答案: 【business and academic setting】 点我阅读全文
的实数解的集合3.设集合A={a,{b},b},写出其幂集P(A)4.设A,B,C为任意集合,证明:(A-B)-C = (A-C)-(B-C)
2)
(每小题2分,共4分)
(4分)证明(6分):