GRE考试

根据网考网考试中心的统计分析，以下试题在2019/7/31日GRE考试习题练习中，答错率较高，为：90%
【单选题】




网考网参考答案：A，答错率：90%
网考网试题解析：
Note that, when a number is decreased by 20%, what remains is 80% of the original: 80% of 80% of 80% = .8 × .8 × .8 = .512 = 51.2%, which is greater than 50%. Column A is greater. ** Use TACTIC 2, Chapter 12. Assume that in 1970 the population of Mayberry was 100. Then, in 1980 it was 80, in 1990 it was 64 (80% of 80), and in 2000 it was 51.2, which is greater than 50, one-half of the 1970 population. document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>