单选题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?（）AWrought iron can resist liquids flowBIt is difficult to attain the wrought ironCWrought iron should be combined with cuprous alloysDThe cuprous alloys have mere disadvantages than wrought iron
单选题
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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