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1、名师精编优秀教案有多少粘贴画教学内容:北师大小学数学二年级上册第72-73 页的内容。教学目标：1.经历独立探究、编制6 的乘法口诀的过程，体验从已有的知识出发探索新知识的思想方法。2.掌握 6 的乘法口诀，解决一些简单的实际问题。教学重点：编制 6 的乘法口诀，并能运用口诀解决简单的实际问题。教学难点：体会估计的方法以及他在计算中的作用，在计算中体会新旧知识的联系，逐步学会从已知寻求未知的思想方法。教学准备：课件教学过程：一、创设情境、激趣引入先一起复习背诵 1-5 的乘法口诀，然后同学们大家一起在1-5 的乘法口诀中找一找包含6 的乘法口诀，（166 2 612 3 618 4 624 5
2、 630）再引入今天的主题。今天，老师带来了许多粘贴画，（投影课件出示图片）你能看一眼，不用数就知道大概有多少粘贴画吗？让我们估一估，一共有多少粘贴画吧。（板书课题：有多少粘贴画）二、自主合作、探究新知1、估一估学生自由估计粘贴画的数量。2、说一说名师精编优秀教案师：同学们，要很快数出有多少“粘贴画”，你有什么高招吗？生：先数一排有几个，再数有几排。师：现在，我们共同来一排一排地数一数，好吗？（手势一排一排的表示）一排有几个？（课件出示一排粘贴画）生：一排 6 个师：1 排是几个 6，列乘法算式，口诀是什么？（板书）16=6一六得六2 排是几个 6，列乘法算式，口诀是什么？（板书）26=12二
3、六十二师：3 排呢，4 排呢请你把书中的乘法算式和乘法口诀补充完整。3、试一试（1）学生尝试写算式、编口诀，师巡视指导（2）学生汇报，交流。（边汇报，边板书红、白俩颜色粉笔）3618 三六十八4624 四六二十四5630 五六三十6636 六六三十六你能跟我们说说是怎样算的吗？（我们学过五六三十的口诀，5 个 6 加 1 个 6 就是 6 个 6六六三十六）6742 六七四十二文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F1
4、0 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7
5、文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H
6、9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7
7、F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2
8、P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G
9、2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4
10、Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7名师精编优秀教案6848 六八四十八6954 六九五十四师：同学们，你们真棒，通过小组合作学习已经能够自己编制的乘法口诀了（3）一起把口诀读一读吧！（4）女同学读算式，男同学读口诀一起合作读一遍吧4、记忆 6 的乘法口诀（1）认真观察，6 的乘法口诀在排列上有什么规律？找到了再告诉你的同桌（2）全班交流（从上往下看，积都多六；从下往上看，积都少六）如果老师记住了五六三十，想不起来六六多少的时候，你有什么办法帮我想吗？（3）采用多种形式熟记口诀用自己最喜欢的方法自由轻声读一读、背一
11、背口诀看谁背得最快最流利老师要来考察一下你们是不是真的这么快就会背诵了！师生对口令。（师说上半句，生答下半句）同桌两人互相检查一下。（对口令）齐背。5、基础练习算一算（P73第 1 题）文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档
12、编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S
13、4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F1
14、0 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7
15、文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H
16、9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7
17、F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7名师精编优秀教案师：同学们，你们会背了，那么你会做吗？请看73 页第一题（1）
18、、谁能说说这道题是什么意思？你能自己填一填吗？好，动笔！（2）、学生独立填写表格。（3）、学生开火车汇报。我们请同学们找一找，看看谁和谁是一对好朋友。36 12 24 18 54 466669623656（投影）全班交流。你是运用了哪句口诀？三、巩固应用，实践深化1、想一想：师：同学们很棒，这么快就自己编出了六的乘法口诀并记住了，那么我现在可要考考你们，看你们能不能掌握6 的乘法口诀中的秘密。请看屏幕：（课件出示）想一想：出示题目：6867口69口请你和你的小组同学讨论一下，括方框里该填几。翻开课本 72 页，想一想，填一填。谁来说一说你是怎么填的？为什么填6？生说师课件演示6867口69口6
19、 个 8=7个 6+1个 6=9 个 6-1 个 6 文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F
20、10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P
21、7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2
22、H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z
23、7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S
24、2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4
25、G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7名师精编优秀教案师：你们真棒，观察得很仔细，又说得很完整，老师真高兴2、师：下面我们就用刚才的方法试着做几道题，请同学们打开书 73 页 4 自己做一做。全班交流。评价：看来同学们不仅会了乘法口诀，还能灵活运用
26、乘法口诀来进行推算，真是了不起3、课件：算一算，每个图中各有多少个方格（P73第 5 题）师：你们的表现太好了，大家看，你们能算出每个图各有多少个格子吗？（1）、学生利用口诀独立解决第1，2 小题，并说出乘法算式（2）、引导学生利用移动方格的形式，小组合作完成第三小题。（3）、你是怎么算出来的？一学生课件演示。四、总结请你闭上眼睛回忆一下，今天这节课我们学了什么？你学会了哪些本领？老师相信，聪明的同学们，只要肯动脑，你们都会是个小数学家。文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S
27、2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4
28、G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X
29、4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W
30、9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4
31、F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y
32、2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7文档编码:CF4F4G2H9S4 HG3Y2X4Z7F10 ZZ8J9W9S2P7