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

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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