to get a bachelor s degree, an undergraduate student is required to do the following except ___________.
A. passing examinations >Princeton University.
B. attending lectures and complete assignments Princeton University.
C. taking certain subjects such as history, language and philosophy
D. earning a certain number of credits at the end of the four years at college
第1题:
____________prevent a lot of radiation damage
[A] get
[B] make
[C] have
[D] do
是完型填空吧?你要把整篇都传上来这样片面的截句无法给出答案。
第2题:
将文本中所有的 stu 替换为 Student ,下面哪些做法是正确的?
A.:1,$s/stu/Student/g
B.:1,$s/stu/Student/gc
C.:1,Ns/stu/Student/g
D.:1,$/stu/Student/g
第3题:
【单选题】为了提高特定查询的速度,对SC(S#, C#, DEGREE)关系创建唯一性索引,应该创建在哪一个(组)属性上?()
A.(S#, C#)
B.(S#, DEGREE)
C.(C#, DEGREE)
D.DEGREE
第4题:
下列代码段声明了3个类:
classPerson{);
classStudent:publicPerson{};
classUndergraduate:Student{);
下列关于这些类之间关系的描述中,错误的是( )。
A.类Person是类Undergraduate的基类
B.类Undergraduate从类Student公有继承
C.类Student是类Person的派生类
D.类Undergraduate是类Person的派生类
第5题:
下列代码段声明了3个类 class Person{}; class Student :public Person{}; class Undergraduate : Student{}; 下列关于这些类之间关系的描述中,错误的是_______。
A.类Person是类Undergraduate的基类
B.类Undergraduate从类Student公有继承
C.类Student是类Person的派生类
D.类Undergraduate是类Person的派生类
第6题:
34、下列代码段中声明了3个类: class Person {}; class Student: public Person{}; class Undergraduate: Student{}; 下列关于这些类之间关系的描述中,错误的是()。
A.类 Person是类Undergraduate的基类
B.类 Undergraduate从类Student公有继承
C.类 Student是类Person的派生类
D.类 Undergraduate是类Person的派生类