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    Mozart wrote his first opera the age of 12. A. in B. on C. at 闂佺偨鍎婚懙褰掑焵椤掑﹥瀚�【查看更多】

     

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    Mozart wrote his first opera ________ the age of 12．

    [　　]

    A．in

    B．on

    C．at

    D．for

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