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测试时间:120分钟总分:100分安徽李庆社一、选择题(每小题3分,共30分)1.下列运算正确的是?摇?摇()A.a■2+a2=a4tttB.(a3)4=a12ttttC.(-3a3)2÷a2=9a3tttD.(-2x)■3=-6x32.下列说法错误的是()A.顶角和腰对应相等的两个等腰三角形全等B.顶角和底边对应相等的两个等腰三角形全等C.
Test time: 120 minutes Total score: 100 points Anhui Li Qingshe First, multiple-choice questions (3 points for each question, a total of 30 points) 1. The following calculations are correct? Sha shake () Aa ■ 2 + a2 = a4 t ttB.(a3)4=a12ttttC.(-3a3)2÷a2=9a3tttD.(-2x)■3=-6x32. The following statement is wrong () A. Two isosceles triangles with equal apex and waist equals B. Two equal isosceles triangles with equal apex and base.