题目内容

Don’t use words, expressions, or phrases_______ only to people with specific knowledge,
A．being knownB．having been known
C．to be knownD．known
D
考查非谓语动词。不要使用那些只为那些具有专业知识的人知道的单词、句式或短语。known to 作后置定语。单词等是被知道的，故用过去分词。
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