12.Gold, silver, copper, iron and tin are the so-called 5 precious m___ls.

問題詳情

12.Gold, silver, copper, iron and tin are the so-called 5 precious m___ls.

參考答案

答案：A
難度：簡單0.717391
統計：A(33),B(7),C(0),D(0),E(0)

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