孔子的孙子孔伋是我国战国时期著名的哲学家和思想家，是儒家思想学派的关键人物，请问孔伋的代表作是什么？
参考答案：
《中庸》
—Is Alice still performing?
—I'm afraid not. She is said _______ the stage already as she has become a director.
A．to have left
B．to leave
C．to have been left
D．to be left
U235贫化铀,钍及其化合物
