Wrought iron has an inherent resistance to corrosion but is not to be had freely , its place has been taken by the cuprous alloysAccording to the above sentence , which of the following statements is true?（）<br>A:Wrought iron can resist liquids flow<br>B:It is difficult to attain the wrought iron<br>C:Wrought iron should be combined with cuprous alloys<br>D:The cuprous alloys have mere disadvantages than wrought iron

Wrought iron has an inherent resistance to corrosion but is not to be had freely , its place has been taken by the cuprous alloysAccording to the above sentence , which of the following statements is true?（）
A:Wrought iron can resist liquids flow
B:It is difficult to attain the wrought iron
C:Wrought iron should be combined with cuprous alloys
D:The cuprous alloys have mere disadvantages than wrought iron

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