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【简答题】
Be q____, please. I’m doing my homework.
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皮皮学刷刷变学霸
举一反三
【简答题】请各自选取一个自己爱好的国家 收集该国具有地域性色彩的图片 并总结该国喜爱和禁忌的颜色
【简答题】Vet. Choose the best answer (a, b, or c) to complete each of the following statements.
【简答题】What is materials science? What is materials engineering?
【单选题】Read the passage quickly and choose the best answers. (1) According to the text, after people in Western society complete their compulsory schooling, what are their main choices for further education?
A.
Community college.
B.
VET and university.
C.
Going abroad to study.
D.
All of the above.
【单选题】烯键上加成常常是反式加成 , 但是下列加成中哪一种是顺式的 ?
A.
Br2/CCl4
B.
Cl2/OH-
C.
H2/Pt
D.
(1) 浓 H2SO4 ,(2)H2O
【单选题】在以下三个关系模式中: 学生(学号,姓名,性别) 课程(课程编号,课程名称) 学生课程成绩(学号,课程编号,成绩) 学生课程成绩表的主键是:
A.
学号
B.
课程号
C.
学号，课程号
D.
成绩
【单选题】Modern technology and science have produced a wealth of new materials and new ways of using old materials. For the artist this means wider opportunities. There is no doubt that the limitations of mate...
A.
artistic creations seem to be the reproductions of modern technology
B.
artistic creations have made great strides scientifically
C.
artistic creations appear to be incapable of ignoring material advances
D.
artistic creations are the reflection of the material world
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