____man can now create radioactive elements, there is nothing he can do to reduc

游客2024-09-07 50

问题 ____man can now create radioactive elements, there is nothing he can do to reduce their radioactivity.

选项 A、As
B、Whether
C、While
D、Now that

答案 C

解析 while在该句中的意思为“虽然，尽管”，表示一种转折关系。

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