The original experiment cannot be exactly duplicated.A:reproduced B:invented C

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问题 The original experiment cannot be exactly duplicated.

选项 A:reproduced
B:invented
C:designed
D:reported

答案A

解析本句意思：原先的实验不可能被完全地复制。duplicate意思为“复制，重复”，与reproduce（复制，再生产）意思相近。invent发明，创造；design设计，安排；report报告，通报。

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