GRE考试

根据网考网考试中心的统计分析，以下试题在2019/10/14日GRE考试习题练习中，答错率较高，为：35%
【单选题】



网考网参考答案：C，答错率：35%
网考网试题解析：
Since by KEY FACT J2 the measure of an exterior angle of a tri-angle is equal to the sum of the measures of the two opposite interior angles, 140 = 70 + y, and so y = 70. Therefore, angles A and B are equal, and by KEY FACT J3 so are the sides opposite them: AC = BC. The columns are equal (C). [*] **If you don’t know the theorem about the exterior angle, first find x: x + 140 = 180 x = 40. Then, since the sum of the measures of the three angles of a triangle is 180, y = 70. document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>