根据网考网考试中心的统计分析,以下试题在2018/1/22日考博习题练习中,答错率较高,为:49%
【单选题】How much of the world's land surface is at risk of becoming desert
A.Less than ten million square kilometers.
B.Twenty million square kilometers.
C.Mom than twenty million square kilometers.
D.30% of the world's land surfac
网考网参考答案:C,答错率:49%
网考网试题解析:
文章第二段中间有一句话“Twenty million square kilometers,an area twice the size of Canada,is at a high to very high risk of becoming desert.With a further 1.25 million square kilometers under moderate risk.”,这句话是说,2000万平方公里的土地面临着成为沙漠的高危险,而125万平方公里的土地有中度危险,加起来就是答案C——超过2000万平方公里的土地面临着成为沙漠的危险。
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