According to the composition, metal alloys are grouped into two classes:（）, and（）metals-未来题库

According to the composition, metal alloys are grouped into two classes:（）, and（）metals

未来题库→百科

According to the composition, metal alloys are grouped into two classes:（）, and（）metals

A.White

B.Ferrous

C.Nonferrous

D.Noble

正确答案：Ferrous；Nonferrous

Tags:Composition according classes

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