(完整word版)初中数学易错题集锦及标准答案.pdf

1/11 初中数学易错题及答案1.4的平方根是（A）2（B）2（C）2（D）2解：42，2 的平方根为22.若|x|=x，则 x 一定是（）A、正数B、非负数C、负数D、非正数答案：B（不要漏掉 0）3.当 x_时，|3-x|=x-3。答案：x-3 0，则 x3 4.22_分数（填“是”或“不是”）答案：22是无理数，不是分数。5.16的算术平方根是 _。答案：164，4 的算术平方根 26.当 m=_时，2m有意义答案：2m 0，并且2m 0，所以 m=07 分式4622xxx的值为零，则 x=_。答案：226040 xxx122,32xxx3x8.关于x的一元二次方程2(2)2(1)10kxkxk总有实数根则K_ 答案：2202(1)4(2)(1)0kkkk3k且2k9.不等式组2,.xxa的解集是xa，则a的取值范围是（A）2a，（B）2a，（C）2a，（D）2a答案：D 2/11 10.关于x的不234a等式40 xa的正整数解是 1 和 2；则a的取值范围是 _。答案：234a11.若对于任何实数x，分式214xxc总有意义，则c的值应满足 _答案：分式总有意义，即分母不为0，所以分母240 xxc无解，C 412.函数13xyx中，自变量x的取值范围是 _ 答案：1030 xx X 113.若二次函数2232ymxxmm的图像过原点，则m=_ 2020mmm m214如果一次函数ykxb的自变量的取值范围是26x，相应的函数值的范围是119y，求此函数解析式 _ 答案：当26119xxyy时，解析式为：26911xxyy时，解析式为15.二次函数 y=x2-x+1 的图象与坐标轴有 _个交点。答案：1个16某旅社有 100张床位，每床每晚收费 10元时，客床可全部租出若每床每晚收费再提高2元，则再减少 10张床位租出以每次这种提高2元的方法变化下去，为了投资少而获利大，每床每晚应提高 _元答案：6元17.直角三角形的两条边长分别为8和6，则最小角的正弦等于 _答案：35或7418.一个等腰三角形的周长为 14，且一边长为 4，则它的腰长是答案：4或5文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T83/11 19.已知一等腰三角形的一个内角为50 度，则其它两角度数为答案：50 度，80 度或 65 度，65 度20.等腰三角形的一边长为 10，面积为 25，则该三角形的顶角等于 _度答案：90或30或15021.等腰三角形一腰上的高与腰长之比为1:2，则该三角形的顶角为 _ 答案：30或15022.若bccaabkabc，则k=_答案：1或223.PA、PB是O的切线，A、B是切点，78APB，点C是O上异于A、B的任意一点，那么ACB_答案：51度或129度24.半径为 5cm的圆内有两条平行弦，长度分别为6cm和8cm，则这两条弦的距离等于_ 答案：1cm或7cm25.两相交圆的公共弦长为，两圆的半径分别为2、，则这两圆的圆心距等于 _答案：31或3126.若两同心圆的半径分别为 2和8，第三个圆分别与两圆相切，则这个圆的半径为_答案：3或527在RtABC中，90C，3AC，5AB，以C为圆心，以r为半径的圆，与 斜边AB只有一个交点，则r的取值范围 _ 答案：r=2.4或3原方程有两个不相等的实数根，,084k2k，2k 又原方程中，021k，10k，112kk且1122kk且43.增长率问题（2012 娄底市）为解决群众看病贵的问题，有关部门决定降低药价，对某种原价为289元的药品进行连续两次降价后为256 元，设平均每次降价的百分率为x，则下面所列方程正确的是（）文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T810/11 A.289（1x）2=256 B.256（1x）2=289 C.289（12x）=256 D.256（12x）=289 解析：本题考查求平均变化率的方法.设变化前的量为a，变化后的量为b，平均变化率为 x，则经过两次变化后的数量关系为a（1 x）2=b设平均每次降价的百分率为x，则第一降价售价为 289（1x），则第二次降价为 289（1x）2，由题意得：289（1x）2=256故选 A评注：对于连续两次增长或降低的问题，可以直接套用式子.若初始数值为 a，连续两次增长或降低后的数值为b，平均增产率或降低率相同，可建立方程：a(x1)2=b44.（2012 年内江市）如图 2，四边形 ABCD 是梯形，BDAC且 BD AC.若 AB2，CD4，则 S梯形 ABCD解析：如图 2，过点 B 作 BE AC，交 DC 的延长线于点 E，过点 B 作 BF DC 于点 F，则 ACBE，DEDCCEDCAB6因为 BDAC 且 BD AC，所以BDE 是等腰直角三角形.所以 BF21DE3，所以 S梯形 ABCD21（ABCD）BF9点评：作梯形的高，平移一条对角线是解决梯形问题经常用到的辅助线45 已知 3a-22 与 2a-3 都是实数 m 的平方根,求 m 的值.答案：49 或 1225 46.已知114ab，则3227aabbabab答案：1 47.我市为了增强学生体质，开展了乒乓球比赛活动。部分同学进入了半决赛，赛制为单循环式（即每两个选手之间都赛一场），半决赛共进行了 6 场，则共有 _人进入半决赛.答案：4图文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T811/11 48在参加足球世界杯预选赛的球队中，每两个队都要进行两次比赛，共要比赛60 场，若参赛队有x支队，则可得方程.答案：(1)60 x x49.如果不等式组21 31,xxxm的解集是2x，那么m的取值范围是（）A.m2 B.m2 C.m2 D.m 2答案：D50.若不等式组530,0 xxm有实数解，则实数m的取值范围是（）A.m35B.m35C.m35D.m35答案：A 51.若关于x的不等式组0721xmx的整数解共有 4 个，则m的取值范围是（）A.6m7 B.6m7 C.6m 7 D.6m 7 答案：D文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8文档编码:CD7H3C4N10I2 HR4Z3Y2O1U1 ZQ3G3P6X7T8