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1、精品好资料欢迎下载安徽滁州市第五中学2010 届九年级数学(人教版)上学期单元试卷(五)内容:24.1 满分:100 分一、选择题(本大题共10 小题,每小题4 分,共 40 分)1 O中,直径AB a,弦 CD b,则 a 与 b 大小为(B )Aab Ba b C ab D a b 2.下列语句中不正确的有(A )相等的圆心角所对的弧相等;平分弦的直径垂直于弦;圆是轴对称图形,任何一条直径都是它的对称轴;半圆是弧。A1 个 2 个C3 个 4 个3已知 O的半径为5,点 O到弦 AB的距离为3,则 O上到弦 AB所在直线的距离为2 的点有(C )A1 个 B 2 个 C3 个 D4 个4如
2、图,已知 O的半径为5,弦 AB=6,M是 AB上任意一点,则线段 OM的长可能是(C )A2.5 B 3.5 C4.5 D 5.5 5如图,已知 AB是 O的直径,BOC=400,那么 AOE=(B )A.400 B.600 C.800 D.12006如图,将圆沿AB折叠后,圆弧恰好经过圆心,则等于(C )A60 B90 C120 D 150(第 4 题)(第 5 题)(第 6 题)7已知 O的半径是5cm,弦 AB CD,AB 6cm,CD 8cm,则 AB与 CD的距离是(C )A 1 cm B 7 cm C.1 cm或 7 cm D.无法确定8如图,BD是 O的直径,圆周角A=30,则
3、 CBD的度数是(C )A30 B 45 C60 D809如图,AB为 O的直径,C、D 是 O上的两点,BAC 30o,AD CD,则 DAC的度数是(A )A30oB 60o C 45o D75o10如图,两正方形彼此相邻且内接于半圆,若小正方形的面积为16cm2,则该半圆的半径为(C )A(45)cm B9 cm C4 5cm D6 2cm _ O_ E_ D_ C_ B_ AA B O M AmB 精品w o r d 可编辑资料-第 1 页,共 5 页-精品好资料欢迎下载(第 8 题)(第 9 题)(第 10 题)二、填空题(本大题共4 小题,每小题分,共12 分)11如图,O的半径
4、OA=10cm,弦 AB=16cm,P为 AB上一动点,则点P到圆心 O的最短距离为 6 cm 。12如图,AB为 O的弦,O的半径为5,OC AB于点 D,交 O于点 C,且 CD 1,则弦AB的长是 6 。(第 11 题)(第 12 题)13如图,CD是 O的直径,弦AB CD,连接 OA,OB,BD,若 AOB 100,则 ABD 25 度。14如图,点 A、B是 O上两点,AB=10,点 P是 O上的动点(P与 A,B不重合)连结AP,PB,过点 O分别作 OE AP于点 E,OF PB于点 F,则 EF=5 。(第 13 题)(第 14 题)三、(本题共2 小题,每小题5 分,满分1
5、0 分)15如图所示,AB是 O的弦,半径OC、OD分别交 AB于点 E、F,且 AE=BF,请你找出线段OE与 OF的数量关系,并给予证明。15 OE=OF。证明:连结OA,OB。OPBAA D B C O A E O F B P O 30D B C A ODCBA精品w o r d 可编辑资料-第 2 页,共 5 页-文档编码:CU8E10V10Q10O1 HK9W6Z2N7Z8 ZG10D9C4D7K4文档编码:CU8E10V10Q10O1 HK9W6Z2N7Z8 ZG10D9C4D7K4文档编码:CU8E10V10Q10O1 HK9W6Z2N7Z8 ZG10D9C4D7K4文档编码:C
6、U8E10V10Q10O1 HK9W6Z2N7Z8 ZG10D9C4D7K4文档编码:CU8E10V10Q10O1 HK9W6Z2N7Z8 ZG10D9C4D7K4文档编码:CU8E10V10Q10O1 HK9W6Z2N7Z8 ZG10D9C4D7K4文档编码:CU8E10V10Q10O1 HK9W6Z2N7Z8 ZG10D9C4D7K4文档编码:CU8E10V10Q10O1 HK9W6Z2N7Z8 ZG10D9C4D7K4文档编码:CU8E10V10Q10O1 HK9W6Z2N7Z8 ZG10D9C4D7K4文档编码:CU8E10V10Q10O1 HK9W6Z2N7Z8 ZG10D9C4D7
7、K4文档编码:CU8E10V10Q10O1 HK9W6Z2N7Z8 ZG10D9C4D7K4文档编码:CU8E10V10Q10O1 HK9W6Z2N7Z8 ZG10D9C4D7K4文档编码:CU8E10V10Q10O1 HK9W6Z2N7Z8 ZG10D9C4D7K4文档编码:CU8E10V10Q10O1 HK9W6Z2N7Z8 ZG10D9C4D7K4文档编码:CU8E10V10Q10O1 HK9W6Z2N7Z8 ZG10D9C4D7K4文档编码:CU8E10V10Q10O1 HK9W6Z2N7Z8 ZG10D9C4D7K4文档编码:CU8E10V10Q10O1 HK9W6Z2N7Z8 ZG
8、10D9C4D7K4文档编码:CU8E10V10Q10O1 HK9W6Z2N7Z8 ZG10D9C4D7K4文档编码:CU8E10V10Q10O1 HK9W6Z2N7Z8 ZG10D9C4D7K4文档编码:CU8E10V10Q10O1 HK9W6Z2N7Z8 ZG10D9C4D7K4文档编码:CU8E10V10Q10O1 HK9W6Z2N7Z8 ZG10D9C4D7K4文档编码:CU8E10V10Q10O1 HK9W6Z2N7Z8 ZG10D9C4D7K4文档编码:CU8E10V10Q10O1 HK9W6Z2N7Z8 ZG10D9C4D7K4文档编码:CU8E10V10Q10O1 HK9W6Z
9、2N7Z8 ZG10D9C4D7K4文档编码:CU8E10V10Q10O1 HK9W6Z2N7Z8 ZG10D9C4D7K4文档编码:CU8E10V10Q10O1 HK9W6Z2N7Z8 ZG10D9C4D7K4文档编码:CU8E10V10Q10O1 HK9W6Z2N7Z8 ZG10D9C4D7K4文档编码:CU8E10V10Q10O1 HK9W6Z2N7Z8 ZG10D9C4D7K4文档编码:CU8E10V10Q10O1 HK9W6Z2N7Z8 ZG10D9C4D7K4文档编码:CU8E10V10Q10O1 HK9W6Z2N7Z8 ZG10D9C4D7K4文档编码:CU8E10V10Q10O
10、1 HK9W6Z2N7Z8 ZG10D9C4D7K4文档编码:CU8E10V10Q10O1 HK9W6Z2N7Z8 ZG10D9C4D7K4文档编码:CU8E10V10Q10O1 HK9W6Z2N7Z8 ZG10D9C4D7K4文档编码:CU8E10V10Q10O1 HK9W6Z2N7Z8 ZG10D9C4D7K4文档编码:CU8E10V10Q10O1 HK9W6Z2N7Z8 ZG10D9C4D7K4文档编码:CU8E10V10Q10O1 HK9W6Z2N7Z8 ZG10D9C4D7K4文档编码:CU8E10V10Q10O1 HK9W6Z2N7Z8 ZG10D9C4D7K4文档编码:CU8E1
11、0V10Q10O1 HK9W6Z2N7Z8 ZG10D9C4D7K4文档编码:CU8E10V10Q10O1 HK9W6Z2N7Z8 ZG10D9C4D7K4文档编码:CU8E10V10Q10O1 HK9W6Z2N7Z8 ZG10D9C4D7K4文档编码:CU8E10V10Q10O1 HK9W6Z2N7Z8 ZG10D9C4D7K4文档编码:CU8E10V10Q10O1 HK9W6Z2N7Z8 ZG10D9C4D7K4文档编码:CU8E10V10Q10O1 HK9W6Z2N7Z8 ZG10D9C4D7K4文档编码:CU8E10V10Q10O1 HK9W6Z2N7Z8 ZG10D9C4D7K4文档
12、编码:CU8E10V10Q10O1 HK9W6Z2N7Z8 ZG10D9C4D7K4文档编码:CU8E10V10Q10O1 HK9W6Z2N7Z8 ZG10D9C4D7K4文档编码:CU8E10V10Q10O1 HK9W6Z2N7Z8 ZG10D9C4D7K4文档编码:CU8E10V10Q10O1 HK9W6Z2N7Z8 ZG10D9C4D7K4精品好资料欢迎下载OA,OB是 O的半径,OA=OB,OBA=OAB。又 AE=BF。OAE OBF,OE=OF。16如图是一块圆形砂轮破碎后的部分残片,试找出它的圆心,并将它还原成一个圆要求:、尺规作图;、保留作图痕迹。(可不写作法。)16提示:作两
13、弦垂直平分线,其交点就是圆心。四、(本题共2 小题,每小题5 分,满分10 分)17.如图,在 O中,2,试判断AB与 CD的大小关系,并说明理由。17.AB 2CD。提示:取的中点 E,连结 EA、EB,则,所以 EA=EB=CD。18如图所示,O的直径 AB和弦 CD交于 E,已知 AE=6cm,EB=2cm,CEA 30,求 CD。18152CD cm。提示:作OF CD于 F,先求 OE,再求 OF,最后用勾股定理求CD。五、(本题共2 小题,每小题6 分,满分12 分)19如图,OA和 OB是 O的半径,并且 OA OB,P是 OA上任一点,BP的延长线交 O于 Q,过 Q的 O的切
14、线交OA的延长线于R。求证:RP RQ。O R B Q A P CBAODEB OEDCBA精品w o r d 可编辑资料-第 3 页,共 5 页-文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C1
15、0 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E
16、3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J
17、9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D
18、10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8
19、H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码
20、:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6精品好资料欢迎下载1
21、9连接 OQ,RQ为O 的切线,OQR=90。PQR+BQO=90。又 OA OB,B+BPO=90。OB=OQ,B=BQO.BPO=PQR.。RP RQ。20.如图,BC 为 O 的直径,AD BC,垂足为D。,BF 和 AD 相交于 E。试猜想 AE 与 BE 的长度之间的关系,并请说明理由。20 AE=BE。提示:连结AC 或补成完整的圆延长AD 应用垂径定理。六、(本大题满分8 分)21如图所示,AB是 O的一条弦,ODAB,垂足为C,交 O于点 D,点E在 O 上。(1)若52AOD,求DEB的度数;(2)若3OC,5OA,求AB的长。21解:(1)ODAB,。11522622DEB
22、AOD(2)ODAB,ACBC,AOC为直角三角形,3OC,5OA,由勾股定理可得2222534ACOAOC28ABAC。七、(本大题满分8 分)22如图所示,已知AB为 O的直径,CD是弦,且 ABCD于点 E。连接 AC、OC、BC。(1)求证:ACO=BCD。(2)若 EB=8cm,CD=24cm,求 O的直径。22证明:(1)AB为 O的直径,CD是弦,且ABCD于 E,CE=ED,=BCD=BAC OA=OC OAC=OCA ACO=BCD(2)设 O的半径为Rcm,则 OE=OB EB=R8,E B D C A O AD BD EDBAOCCB DB FECBAODABAF精品w
23、o r d 可编辑资料-第 4 页,共 5 页-文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G
24、3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9
25、ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10
26、I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6
27、文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:C
28、R7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9
29、X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6精品好资料欢迎下载CE=21CD=2124=12 在 RtCEO中,由勾股定理可得OC2=OE2+CE2即 R2=(R
30、8)2+122解得 R=13。2R=213=26。答:O的直径为26cm。八、(本大题满分10 分)23如图所示,已知O是 EPF的平分线上的一点,以O为圆心的圆与角的两边分别交于点A、B和 C、D。求证:PB=PD。若角的顶点P在圆上或圆内,中的结论还成立吗?若不成立,请说明理由;若成立,请加以证明。23.(1)证明:过O作 OE PB于 E,OF PD于 F。OPEPFOEOFPEPFABCDBEDFPEBEPFDFPBPD平分,则(2)上述结论仍成立。如下图所示。证明略。A A E E P O P O F F C C PA=PC PA=PC 精品w o r d 可编辑资料-第 5 页,共
31、 5 页-文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文
32、档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR
33、7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X
34、3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 H
35、C5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3
36、O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6文档编码:CR7D5Y9X3C10 HC5E3G3O6J9 ZF8D10I6R8H6