Although it was not named 1782, this kind of metal was used as early as 5300 BCA．in B．fo

发布时间：2020-08-16 15:53:04

Although it was not named      1782, this kind of metal was used as early as 5300 BC．
A．in                   B．for            C．until          D．since

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解析：考查not … until …直到……才……。句意：尽管它直到1782年才有名字，这种金属早在公元前5300就被使用了。
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