GRE考试

【单选题】Directions for QuantitativeComparison Questions: Some of the following questions give you two quantities, one inColumn
A、and one inColumnB,Compare the two quantities and choose one of the following answer choices:

A、if the quantity inColumn
A、is greater;

B、if the quantity in column
B、is greater;
C．if the two quantities are equal;
D．if you cannot determine the relationship based on the given information

网考网参考答案：D
网考网解析：
To solve this problem, try some test values for x and y that fit within the parameters stated. If x=0.02 and y=0.025, then |x-y|=|0.02-0.025|, or 0.005 because absolute values are always expressed as positive numbers. Thus Column A and Column B are equal. However, if x=0.021 and y=0.023, then Column A (0.002) would be less than Column B (0.005). A relationship cannot be determined from the information provided. document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>