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多项选择题 public class Parent {  public int addValue（ int a， int b） {     int s；     s = a+b；     return s；     }     }  class Child extends Parent {  }  Which methods can be added into class Child？（）   

A、 int addValue（ int a， int b ）{// do something...}

B、 public void addValue （）{// do something...}

C、 public int addValue（ int a ）{// do something...}

D、 public int addValue（ int a， int b ）throws MyException {//do something...}

  • B,C

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