52单词网 > 高中英语 > 高中英语题库 > ．So far, several cases of a disease, as H1N1, are reported to have been found in

．So far, several cases of a disease, as H1N1, are reported to have been found in

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．So far, several cases of a disease, as H1N1, are reported to have been found in

．So far, several cases of a disease, _____ as H1N1, are reported to have been found in the country．

A．knowingB．to be knownC．having knownD．known

试题答案

D

解析

标签：asaretoreporteddisease

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