Additionally, a concentrate may contain more than one valuable metal. 这句话的意思是__________.
A、此外，富集可能含有一个以上的有用金属。
B、此外，富集可能含有三个个以上的有用金属。
C、此外，原矿石可能含有一个以上的有用金属。
D、此外，富集可能含有一个以上的无用金属。
发布时间：2025-07-04 01:24:21
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