contain a large percentage of iron such as the steels and cast irons._精华吧

contain a large percentage of iron such as the steels and cast irons.

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contain a large percentage of iron such as the steels and cast irons.

A.ferrous metal and alloys

B.nonferrous metal and alloys

C.rare metal and alloys

D.precious metal and alloys

正确答案： ferrous metal and alloys

Tag：材料概论时间：2022-01-18 21:17:25

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