托福考试

易错题: Pigiron, wrought iron, and steel c

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根据网考网考试中心的统计分析,以下试题在2018/10/29日托福考试习题练习中,答错率较高,为:93%
【单选题】 Pigiron, wrought iron, and steel contain iron carbides made up of ______ of carbon.
A.(amounts are different
B.( different amounts that
C.( different amounts
D.( which amounts are different

网考网参考答案:C,答错率:93%
网考网试题解析:

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