The reason was that it was not at that time ascertained that those materials wer

游客2025-03-28  5

问题 The reason was that it was not at that time ascertained that those materials were definitely to be used.

选项 A、determined
B、argued
C、pretended
D、hypothesized

答案 A

解析 划线词ascerained“确定”。A项determined“决定”;B项argued“争论”;C项pretended“假装”;D项hypothesized“假设,猜测”。所以,A项与划线词语意最为接近。
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