So far, several cases of a disease, as bird flu, are reported to have been found in the country. A．k...
2023-01-26 00:50:38 46次 2010年海南省高二上学期第二次月考英语卷 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
So far, several cases of a disease, as
bird flu, are reported to have been found in the country.
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A．knowing
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B．to be known
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C．having known
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D．known
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