Our scientific findings cannot be regarded as ______ in such a short period of time.

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问题 Our scientific findings cannot be regarded as ______ in such a short period of time.

选项 A、to have been obtained
B、to be obtained
C、having been obtained
D、being obtained

答案C

解析非谓语动词及时态题。as在这里是介词，后面应接名词性质的词，create的动作是过去发生的，所以选C 。

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专业英语四级

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