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单项选择题

You need to write a multicast delegate that accepts a DateTime argument.Which code segment should you use?()

    A.public delegate int PowerDeviceOn(bool result,DateTime autoPowerOff);
    B.public delegate bool PowerDeviceOn(object sender,EventArgs autoPowerOff);
    C.public delegate void PowerDeviceOn(DateTime autoPowerOff);
    D.public delegate bool PowerDeviceOn(DateTime autoPowerOff);

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