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多项选择题 Which two, independently, will allow Sub to compile?()

A、Change line 2 to:public int a;

B、Change line 2 to:protected int a;

C、Change line 13 to:public Sub(){this(5);}

D、Change line 13 to:public Sub(){super(5);}

E、Change line 13 to:public Sub(){super(a);}

  • C,D
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