GRE考试

【单选题】



网考网参考答案：C
网考网解析：
Mentally, or by using a Venn diagram, determine the number of girls who play only one sport. 40 play only basketball and 30 play 4 only volleyball. The ratio is 40:30 =[*]. The columns are equal (C). [*] document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>