[单选题]已知类的继承关系如下：class Aclass B extends Aclass C extends A则以下语句能通过编译的是（ ）
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2023-11-01 15:17:29|
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[单选题]已知类的继承关系如下：class Aclass B extends Aclass C extends A则以下语句能通过编译的是（ ）
A.C c=new A();
B.B b=new C();
C.C c=new B();
D.A a=new B();
A.C c=new A();
B.B b=new C();
C.C c=new B();
D.A a=new B();
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