问题描述：
下面这段话中的high government sources是什麽意思?
In addition to being required by their professional code of ethic to protect the confidentiality of “high government sources,” reporters typically must offer such protection in order to be assured of receiving future news stories.
In addition to being required by their professional code of ethic to protect the confidentiality of “high government sources,” reporters typically must offer such protection in order to be assured of receiving future news stories.
问题解答：
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