GRE考试

【单选题】Directions: In the following questions, choose the best answer from the five choices listeD、


网考网参考答案：B
网考网解析：
Solve the given equation: Add the fractions: Multiply both sides by a: 3 = 12a Divide both sides by 12: **You can use TACTIC 1, Chapter 11: back-solve; try Choice C , so the left-hand side equals 9. That’s too small. Now, be careful." a fraction gets bigger when its denominator gets smaller [KEY FACT B4]. Eliminate Choices C, D, and E, and try a smaller value for a: works. document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>