Message in Chinese (Simplified) (中文(简体))
IAsyncResult 对象并不来自于此类型上相应的异步方法，或者使用同一 IAsyncResult 多次调用了 End 方法。
Unlocalized message
Either the IAsyncResult object did not come from the corresponding async method on this type, or the End method was called multiple times with the same IAsyncResult.
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