《郑伯克段于鄢》一文中“多行不义必自毙”这句话指斥的对象是（）
A.郑庄公
B.姜氏
C.子封
D.共叔段
参考答案：D
Has he ever been heard __about his trip to the lonely island?
A．of talking
B．talk
C．to talk
D．to say
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