2022年中考试题汇编二次根式答案 .pdf
中考数学试题汇编二次根式一、选择题1.(2011 贵州毕节,1,3 分)16的算术平方根是()A4 B4 C 2 D2【答案】C 2.(2011 辽宁大连,3,3 分)实数10的整数部分是A2 B 3 C4 D5【答案】B 3.(2011 天津,4,3 分)估计10的值在()A.1 到 2 之间 B.2到 3 之间 C.3到 4 之间 D.4到 5 之间答案:C4.(2010 湖南长沙,3,3 分)下列计算正确的是()A.3-1=-3 B.a2a3=a6 C.(x+1)2=x2+1 D.32-2=22【答案】D 5.(2011 贵州遵义,8,3 分)若a、b均为正整数,且32,7 ba则ba的最小值是A.3 B.4 C.5 D.6【答案】B6.(2011 江苏徐州,3,2 分)估计11的值()A.在 2 到 3 之间 B.在 3 到 4 之间C.在 4 到 5 之间 D.在 5 到 6 之间【答案】B7.(2011 江苏徐州,5,2 分)若式子x-1在实数范围内有意义,则 x 的取值范围是()A.x 1 B.x 1 C.x 1 D.x 1【答案】A8.(2011 云南省昆明市,6,3 分)下列各式运算中,正确的是()A3a2b=6a B|3-2|=2-3 C32-8=2 D(2a+b)(2a-b)=2a2-b2【答案】B 9.(2011?泸州,8,2 分)设实数 a,b 在数轴上对应的位置如图所示,化简的结果是()A、2a+b B、2a+b C、b D、b【答案】D 10(2011 山东淄博,3,3 分)下列等式不成立的是()A66326B 824C3331D 228【答案】B二、填空题1.(2011 福建泉州,8,4 分)比较大小:2 3(用“”或“”号填空).【答案】;2.(2011 广东河源,6,4 分)4 的算术平方根是_【答案】23.(2011 河南,7,3 分)27 的立方根是。【答案】3 4.(2011 湖 北 随 州,3,3 分)要 使 式 子2aa有 意 义,则a 的 取 值 范 围 为_【答案】a 2 且 a05.(2011 陕西,11,3 分)计算:23=(结果保留根号)【答案】326.(2011 贵州遵义,11,4 分)计算:218 。【答案】27.(2011 贵州遵义,14,4 分)若x、y为实数,且023yx,则yx 。【答案】18.(2011四 川 达 州,15,3 分)若0121322bbaa,则baa221=【答案】69.(2011 湖南娄底,11,4 分)计算:29【答案】610(2011 广东肇庆,11,3 分)化简:12【答案】32文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 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ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U311.(2011 广西梧州,14,3 分)当 a_时,a+2在实数范围内一有意义【答案】212.(2011 湖北省随州市,13,4 分)要使式子aa2有意义,则a 的取值范围为【答案】a 2 且a013.(2011 辽宁沈阳,9,4 分)计算25(1)2=_。【答案】414.(2011 福建龙岩,12,3 分)若式子3x有意义,则实数x的取值范围是 _。【答案】3x15.(2011 山东枣庄,16,4 分)对于任意不相等的两个实数a、b,定义运算如下:ab=baba,如 32=32532那么 812=【答案】5216.(2011 湖 北 鄂 州,3,3 分)要 使 式 子2aa有 意 义,则a 的 取 值 范 围 为_【答案】a 2 且 a017.(2011 云南省昆明市,10,3 分)当x_时,二次根式x-5 有意义【答案】x 5 18.(2011 昭通,14,3)使2x有意义的x的取值范围是 _。【答案】2x19.(2011 内蒙古包头,15,3分)化简二次根式:1232127等于【答案】220(2011 年青海,2,4分)分解因式:x3 2x2x=;计算:18232=.【答案】x(x 1)2;021.(2011 年青海,7,2 分)若a,b是实数,式子26b和|a2|互为相反数,则(a+b)2011=.【答案】122.(2011 广西崇左,3,2 分)若二次根式1x有意义,则x的取值范围是 _.【答案】x1文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U323.(2011 广西柳州,5,3分)若2x在实数范围内有意义,则x 的取值范围是 A.x2 B.x 3 C.X2 D.X2【答案】C 24.(2011 广西百色,15,3 分)化简:4=.【答案】:25.(2010 乌鲁木齐,11,4 分)若代数式1x在实数范围内有意义,则x的取值范围是 .【答案】1x26.(2011 新疆维吾尔自治区,新疆生产建设兵团,9,5分)若二次根式31x有意义,则 x 的取值范围是_;【答案】13x27.(2011 贵州六盘水,15,4 分)一个正方形的面积是20,通过估算,它的边长在整数_与_之间。【答案】4 与 5 或 5 与 4 28.(2011 贵州黔南,14,5 分)已知:0)53(322yxyx,则 xy=【答案】2129.(2011 青海西宁,12,2 分)若二次根式12x有意义,则x的取值范围是_【答案】x1230.三、解答题1.(2011 广东珠海,20,9 分)(本题满分9 分)阅读材料:小明在学习二次根式后,发现一些含根号的式子可以写成另一个式子的平方,如3+22=(1+2)2,善于思考的小明进行了以下探索:设 a+b2=(m+n2)2(其中a、b、m、n均为正整数),则有 a+b2=m2+2n2+2mn2,a=m2+2n2,b=2mn.这样小明就找到了一种把部分a+b2的式子化为平方式的方法.请你仿照小明的方法探索并解决下列问题:(1)当a、b、m、n均为正整数时,若a+b3=(m+n3)2,用含m、n的式子分别表示a、b,得:a=,b=;文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3(2)利用所探索的结论,找一组正整数a、b、m、n填空:+3=(3)2;(3)若a+43=(m+n3)2,且a、m、n均为正整数,求a的值.【答案】解:(1)a=m2+3n2 b=2mn (2)4,2,1,1(答案不唯一)(3)根据题意得,mnnma243222mn=4,且 m、n 为正整 数,m=2,n=1 或 m=1,n=2.a=13 或 7.2.(2011 广东清远,20,5 分)先化简,再求值:21111xxx,其中 x=21。【答案】解:原式(1)(1)1xxxxx1x当21x时原式12112x3.(2011 内蒙古呼和浩特市,17(1),5 分)计算:121212218【答案】解:原式=212223(4 分)=123(5 分)4.(2011 江西 b 卷,17,6 分)先化简,再求值:2211()11aaaa,其中2a【答案】解:原式=21111111aaaaaaa=211a.3 分当2a时,原式=112 1.6 分5.(2011 福建龙岩,18(2),10 分)先化简,再求值:22142aaa,其中32a。(结果精确到0.01)【答案】原式化简=12a,当32a时,原式=1333文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U36.(本题满分6 分)(2011 广西百色,21,6 分)已知 a=3+1,b=3。求下列式子的值,babababaabbabba22)()(【答案】:原式=babababaabbabba2)()()(=babbabaabababaa把 a=3+1,b=3代入bab得bab=331337.(2011 辽宁本溪,18,8 分)先化简,再求值:)223(xxxx422xx,其中x3 4【答案】)223(xxxx422xx)2)(2()2()2)(2()2(3xxxxxxxxxx242)2)(2(822xxxxxxx2)2)(2(xxx2822x4 当x3 4 时,原式3 443文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 ZS4T2I7A10U3文档编码:CI3W1G6R8R1 HF3D6W3E9L9 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