2. 外语
  3. Cosmetics, rarely noted today for any dangerous properties, have been______for serious health problems in the past.

Cosmetics, rarely noted today for any dangerous properties, have been______for serious health problems in the past.

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问题 Cosmetics, rarely noted today for any dangerous properties, have been______for serious health problems in the past.
选项 A、responsibility
B、responsible
C、its responsibility
D、the responsible
答案B
解析 该题是词汇题，考查词汇的词性辨析。空白处应该填入形容词而不是名词，所以选项A和选项C首先就可以排除。与形容词responsible有关的短语是be responsible for。因此，根据题意，选项B为最佳答案。
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