根据网考网考试中心的统计分析，以下试题在2018/5/29日考研习题练习中，答错率较高，为：44%
【单选题】According to the passage, uranium ore is very dangerous because______
A. it produces radioactive substances after it is dug out
B．it has caused deaths of many miners
C．the mining of it produces dangerous by-products
D．there is a problem in mining techniques
网考网参考答案：C，答错率：44%
网考网试题解析：
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