2019年新人教版二年级数学下册知识点复习总结.pdf

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1、构思新颖，品质一流，适合各个领域，谢谢采纳2019 年新人教版二年级数学下册知识点复习总结第一单元数据收集整理1、用画“正”字方法收集数据。2、用统计图表来表示数据情况。3、根据统计图表可以做出一些判断。4、数据收集-整理-分析表格。第二单元表内除法（一）一、平均分1、平均分的含义：把一些物品分成几份，每份分得同样多，叫平均分。2、平均分的方法：（1）把一些物品按指定的份数进行平均分时，可以一个一个的分，也可以几个几个的分，直到分完为止。（2）把一些物品按每几个一份平均分，分时可以想：这个数可以分成几个这样的一份。二、除法1、除法算式的含义：只要是平均分的过程，就可以用除法算式表示。2、除法算

2、式的读法：通常按照从前往后顺序读，“”读作除以，“=”读作等于，其他读法不变。3、除法算式各部分的名称：在除法算式中，除号前面的数就被除数，除号后面的数叫除数，所得的数叫商。三、用 26的乘法口诀求商构思新颖，品质一流，适合各个领域，谢谢采纳1、求商的方法：（1）用平均分的方法求商。（2）用乘法算式求商。（3）用乘法口诀求商。2、用乘法口诀求商时，想除数和几相乘的被除数。四、解决问题1、解决有关平均分问题的方法：总数每份数=份数、总数份数=每份数、被除数=商除数、被除数=商除数+余数、除数=被除数商、因数因数=积、一个因数=积另一个因数2、用乘法和除法两步计算解决实际问题的方法：（1）所求问题

3、要求求出总数，用乘法计算；（2）所求问题要求求出份数或每份数，用除法计算。第三单元图形的运动（一）1、轴对称图形：沿一条直线对折，两边完全重合。对折后能够完全重合的图形是轴对称图形，折痕所在的直线叫对称轴。2、平移：当物体水平方向或竖直方向运动，并且物体的方向不发生改变，这种运动是平移。只有形状、大小、方向完全相同的图形通过平移才能互相重合。3、旋转：物体绕着某一点或轴进行圆周运动现象就是旋转。第四单元表内除法（二）一、用 7、8、9 的乘法口诀求商文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U

4、6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F

5、3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U

6、6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F

7、3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U

8、6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F

9、3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U

10、6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1构思新颖，品质一流，适合各个领域，谢谢采纳求商方法：想“除数（）=被除数”，再据乘法口诀计算得商。二、解决问题求一个数里有几个几，和把一个数平均分成几份，求每份是多少，都用除法计算。第五单元混合计算一、混合计算混合运算，先乘除，后加减，有括号的要先算括号里面的。只有加、减法或只有乘、除法，都要从左到右按顺序计算。二、解决两步计算的实际问题1、想好先解决什么问题，再解决什么问题。2、可以画图帮助分析。3、可以分布计算，也可以列综合算式。第六单元有余数的除法一、有余数的除法1、有余数的除法的意义：在平均分

11、一些物体时，有时会有剩余。2、余数与除数的关系：在有余数的除法中，余数必须比除数小。最大的余数小于除数 1，最小的余数是 1。3、笔算除法的计算方法：（1）先写除号“厂”（2）被除数写在除号里，除数写在除号的左侧。（3）试商，商写在被除数上面，并要对着被除数的个位。文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV

12、2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q

13、8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV

14、2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q

15、8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV

16、2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q

17、8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1构思新颖，品质一流，适合各个领域，谢谢采纳（4）把商与除数的乘积写在被除数的下面，相同数位要对

18、齐。（5）用被除数减去商与除数的乘积，如果没有剩余，就表示能除尽。4、有余数的除法的计算方法可以分四步进行：一商，二乘，三减，四比。（1）商：即试商，想除数和几相乘最接近被除数且小于被除数，那么商就是几，写在被除数的个位的上面。（2）乘：把除数和商相乘，将得数写在被除数下面。（3）减：用被除数减去商与除数的乘积，所得的差写在横线的下面。（4）比：将余数与除数比一比，余数必须必除数小。二、解决问题根据除法的意义，解决简单的有余数的除法的问题，要根据实际情况，灵活处理余数。第七单元万以内数的认识一、1000 以内数的认识1、10 个一百就是一千。2、读数时，要从高位读起。百位上是几就几百，十位上几

19、就几十，个位上是几就读几中间有一个 0，就读“零”，末尾不管有几个0，都不读。3、写数时，要从高位写起，几个百就在百位写几，几个十就在十位写几，几个一就在个位写几，哪一位上一个数也没有就写0 占位。4、数的组成：看每个数位上是几，就由几个这样的计数单位组成。二、10000以内数的认识1、10 个一千是一万。2、万以内数的读法和写法与1000以内数读法和写法相同。文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7

20、Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 H

21、L8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7

22、Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 H

23、L8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7

24、Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 H

25、L8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7

26、Y1构思新颖，品质一流，适合各个领域，谢谢采纳3、最小两位数是 10,最大两位数是 99;最小三位数是 100,最大的三位数是999；最小四位数是1000,最大的四位数是9999；最小的五位数是10000,最大的五位数是99999。三、整百、整千数加减法1、整百、整千加减法的计算方法。（1）把整百、整千数看成几个百，几个千，然后相加减。（2）先把 0 前面的数相加减，再在得数末尾添上与整百、整千数相同个数的0。2、估算把数看做它的近似数再计算。第 8 单元 克和千克克和千克是国际上通用的质量单位。计量较轻的物品的质量时，通常用“克”；计量较重的物品质量时，通常用“千克”作单位。1 千克=100

27、0克、（了解 1 千克=1公斤、1 公斤=2斤、1 斤=500克、1 斤=10两、1 两=50克）估计物品有多重，要结合物品的大小、质地等因素。第九单元数学广角推理时，先据条件确定必然情况，再用排除法确定其他情况文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6

28、N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3

29、E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6

30、N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3

31、E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6

32、N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1文档编码:CV2J2D3F3E6 HL8E2A1N8Q8 ZT9U6N9L7Y1