Here is an old post that may be helpful.

来源: NJTOO 于 2007-06-21 20:53:52 [] [旧帖] [给我悄悄话] 阅读数 : 0 (175 bytes)

http://web.wenxuecity.com/BBSView.php?SubID=immigration&MsgID=307820

Scroll down to the bottom of the screen and look for the answers from "TooSad". It is a good one.

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