托福考试

根据网考网考试中心的统计分析，以下试题在2019/1/18日托福考试习题练习中，答错率较高，为：88%
【单选题】______ crumbles readily when exposed to a moist, acid atmosphere, but the stone is durable in a dry atmosphere.
A、The surface of marble is
B．The surface of marble, which
C．Although the surfitce of marble
D．The surface of marble

网考网参考答案：D，答错率：88%
网考网试题解析：
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