能将程序补充完整的选项是( )。 class Person { private int a; public int change(int m){return m;) } public class Teacher extends Person { public int b; public static void main(String arg[]) { Person p=new Person; Teacher t=new Teacher; int i; } }
A.
i=m
B.
i=b
C.
i=P.a
D.
i=P.change(50)
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举一反三
【多选题】why are the sports and hobbies good for us?
A.
Because they can improve level of fitness and general health.
B.
Because they can develop our mind and brain.
C.
Because they make us stupid and lazy.
D.
Because they help us communicate with other people and make friends.