2022年冀教版数学一下《前后》word教案 .pdf

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1、名师精编优秀教案前后教学内容：冀教版数学教科书第二册4、5页。教学目标：知识与技能：通过观察、操作、讨论理解前后位置的相对性，能从具体的情境中正确确定“前后”。过程与方法：通过观察、操作、表演、说一说等活动，感知前后的位置关系，初步体会前后的相对性，培养探索意识和协作精神。情感、态度和价值观：在现实情境中，体验学习数学的乐趣，激发探索知识的积极性。教具准具：“龟兔赛跑”教学挂图或课件。教学过程：环节学生活动教师活动设计意图一、创设情境前面有黑板、一面国旗，后面有一个书架。前面有讲桌，后面有学生。学生互相说，个别学生互相汇报：我的前面是*，后面是*小朋友们，你看一看我们教室的 前 面 有 什 么

2、？后 面 有 什么？请同座位的两名小朋友互相说一说，自己的前面是谁、后面是谁。同学们说的都很好，下面请每个小组最前的小朋友站起来；在现实的情境活动中，让学生获得大量的感性材料，为正确确定前后奠定基础。教师对学生的回答要求不要过高，只要学生初步感知现实情境中的前后即可。名师精编优秀教案学生按要求起立。最后面的小朋友站起来。大家看一看他们站的对吗？让学生听口令，摆物体。文具盒放在数学书的前面，数学书放在文具盒的后面；铅笔盒不要摆在数学的前面刚才我们一直说关于前后的话题，这正是我们今天所要研究的问题。（板书：前后。）通过简单的游戏，使学生感知前后，在玩中学，乐中悟，体会生活中处处有数学。二、体验感悟

3、同桌互相说一说。学生讲故事：这个故事的名字是 龟兔赛跑，开始跑后，兔子在乌龟的前面，可是后来，兔子骄傲了，乌龟经过努力，终于跑到了兔子的前面，乌龟夺取了第一名。学生自由发言：出示教科书中“看图讲故事”挂图。让学生仔细观察情景图。谁能根据这幅图给大家讲故事？教师深入学生当中，倾听、指导。小朋友们，从这个故事中，你知道了什么？让学生学会观察情景图，鼓励学生大胆想象，培养学生的数学表达能力。通过这个故事让学生知道做好一件事情要有毅力、有耐心，要坚持到底。文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y

4、7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:

5、CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 H

6、A3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF

7、6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编

8、码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2

9、 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4

10、ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1名师精编优秀教案学生 1：这个故事中，用到了“前和后”。学生 2：乌龟的精神值得我们学习。学生 3：兔子太骄傲了。学生互相交流：*的后面是*，*的前面是*。我的前面有四个，后面有两个。原来最后面的同学，变成了最前面的。因为方向反了。教师请三位小朋友站成一列，然后让其他的小朋友说一说这三位小朋友的前后关系。刚才小朋友们讲的真好，现在请你们看一看，你的前面和后面有几个小朋友。体验相对，确定前后。请每一行最前面和最

11、后面的小朋友站起来。现在请全班的小朋友向后转，发生了什么变化？这是为什么呢？方向发生了变化，前后顺序就让学生在在具体的情境中能正确确定前后，进一步加深对前后的理解，培养他们敢于发表自己观点的意识。通过看一看、摆一摆、说一说，把观察、操作同口头表达相结合，掌握以什么为标准来确定前后，让学生充分体会前后的相对性，也能更深文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 H

12、A3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF

13、6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编

14、码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2

15、 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4

16、ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文

17、档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6

18、G2 HA3B4P7C1V4 ZF6Y7L10Y9G1名师精编优秀教案学生自由操作。变了。以前后两个小朋友为一组，互相摆一摆你们的文具，然后说一说谁在前面，谁在后面。一层理解到确定前后以“什么”为标准的重要性。这样有利于培养学生善于思考，勤于动脑的好惯。三、实践应用学生应用前后关系说明队列中每个同学的位置。学生认真观察，充分讨论后汇报。学生自由表达。学生根据自己的观察自主发言。队列游戏，请几位同学到前面来，站成一列（前后站）。你发现了什么？让前面同学围成一个圈。这样站，你又发现了什么？要确定圆圈里的小朋友谁在前面、谁在后面，必须先选定一个小朋友，然后就可以说谁在谁的前面或谁在最前面。出示课本中

19、练一练的第二题，让学生说一说各组运动员的位置。（小兔拔河）我们的身边有哪些前后、左右的应用。将学生学到的知识主动的同问题相结合，进一步体会“前后”的相对性。在应用知识的同时，不断发现新问题、新情况，培养学生的自主探索精神。文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C

20、1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y

21、9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3

22、Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P

23、7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L1

24、0Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6

25、J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1名师精编优秀教案文档编码:CQ6J3Q2T

26、6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1

27、V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9

28、G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q

29、2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7

30、C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10

31、Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1文档编码:CQ6J3Q2T6G2 HA3B4P7C1V4 ZF6Y7L10Y9G1