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1、.直线和圆的位置关系典型习题1.如图,AB为O的直径,C为O上一点,AD和过点C的切线垂直于D, BE和过点C的切线垂直于E求证:(1)AC平分DAO(2)BC平分EBO(3)DC = CE(4)AD + BE = AB(5)ADCACB(6)CEBACBABCDEO(7)AC2 = AD·AB(8)BC2 = BE·AB2.已知:PA、PB分别切O于A、B,C为优弧上一点,D为劣弧上一点。求证:(1)D = 90°+ P(2)C = 90° PPABCDAB3.如图,两个同心圆,大圆的弦AB和小圆相切,AB = a求证:圆环的面积 = 4.已知:AB为
2、O直径,ADBC,B = 90°,DC切O于E求证:(1)CD = AD + BC(2)COD = 90°(3)OE2 = AD·BCOABCDEFG (4)连结AC、BD,交于点F,则EFBCABCDEO (5)延长EF交AB于G,则GF = EF5.RtABC中,B = 90°,AB = 6,BC = 8,则ABC的内切圆半径为_,ABC的外接圆半径为_。ABPCDEO6.已知PA、PB分别切O于A、B,E为劣弧AB上一点,过E点的切线交PA于C、交PB于D。(1) 若PA = 6,求PCD的周长。(2) 若P = 50°求DOC7.已知圆
3、外切四边形ABCD,则ABBCCDDA = 645_。(已知圆内接四边形ABCD,则ABCD = 234_)8.已知ABC中,AB=AC=13,ABC的面积为60,求ABC内切圆直径(此题两个结果,可用相似求,也可利用S=C·r )9.已知:如图,PA、PB分别切O于A、B,AC为O直径求证:(1)POBC(2)ABCPBO(3)PO·BC = 2OB2(ABPOCE4)(5)E为PAB的内心DABCEI10.如右图,点I是ABC的内心,AI交边BC于点D,交ABC的外接圆于点E。求证:(1)BE = IE(2)IE2 = DE·AE11、等边三角形的边长为,则它
4、的内切圆半径为_,外接圆半径为_,高线为_。12、在ABC中,A的平分线AE交BC于D,交ABC的外接圆于E。(1)连结BE、CE,图中有哪些相等的角?有哪些相等的线段?并证明:ADCBDEABEABDCEDAEC(2)过E作圆的切线MN,交AB的延长线于M,交AC的延长线于N,证明:MNBC(3)过B作圆的切线BF,证明:BE平分DBFDABCEFDABCEG(4)过A作圆的切线AG,交BC的延长线于G, 证明:AGD为等腰三角形。DABCEMNDABCE(1) (2) (3) (4)13、已知:AD切ABC的外接圆于A,交BC的延长线于D,DF平分ADB,分别交AC、AB于E、F。求证:(
5、1)DCDB = AC2AB2(2)AE = AFDABCEF(3)图中共有多少组相似三角形(4)AE2 = CE·BE14、过O内部或外部的一点P作O的割线,交O于A、B两点。求证:PA·PB = OP2 r2(r为O的半径)PPOABABO15、半径为5的O中,半径OC垂直于直径AB,割线PC交O于D,交AB的延长线于P,若CD = 2,分别求PC、PB、BD的长(两种方法:列方程,作OEPC于E)OABCPD16、已知:AB为O直径,BAC = 20°,D为的中点, ED切O于D,求EDAABCDE17、延长O的直径AB到P,使PB = OB,过P作PC切O
6、于C,过B作BD切O于B,交PC于D。OABPCD(1) 求P、A的度数(2) 求CDDP18.已知AB是O的直径,BC是O的切线,切点为B,OCAD,(1)求证:DC是O的切线,(2)若O的半径为R,求证:AD×OC=2 (3)若BC=6,O的半径为3.求AD的长。(4)设OC交O于N,当AE:AO等于多少时,四边形AOND菱形,请说明理由。 19.如图ABC中,AB=AC,以AB为直径的O交BC于D,DEAC于E,交BA的延长线于H。(1)求证:DE是O的切线,(2)若AH=,tanFBD=,求O的直径。(3)试探究四边形AEFG的形状。BD,BA, BF三条线段之间的关系式,过
7、H作DHB的平分线交BC于M,当AB的长度变化时H在直线AB上的位置也发生变化,试问HMD的大小是否发生变化,若不发生变化,求出HMD的度数;若发生变化,请说明理由。(4)AH=,tanFBD= , 求BG的长度. 20.如图以RtABC的直角边AC为直径的O交斜边AB于D,过O作OEAB,交BC于E(1)求证:DE是O的切线,(2)CE=BE(3)如果O的半径为,ED=2求AB的长。(4)当BAC为多少度时,AOED为平行四边形?(5)在(4)的条件下,探索CODE的形状。21.如图AB=AC , ABC =,以AC为直径作O,CO与O交于D,AD交BC于E,F是BE的中点,(1)判断DF与
8、O的位置关系。(2)下列四个结论=CE×CB 4=ED×EA OCB=EAB DF=CD 其中正确结论是 (只填序号)并选择一个证明22.已知点A,B,C,D在O上,DA=DC,AC,BD相交于E,DE=EB,延长BA至F,使AF=AB,连接DF(1)BD平分ABC(2)若DE=3,求AB的长 3试判断DF与O的位置关系(4)求F的正弦值 (5)探索ABCD与BODC的形状23、 如图AB是O的直径,AC=CE,CDAB于D,AE交CD于F,交BC于K。(1)求证:AF=CF (2)若tanECA=CD=2,求O的直径 (3)连接OF,试判断OF与BK之间的关系 (4)写出
9、图中至少三个不同的比例式或乘积式,并选择一个证明。24.在ABC中AB=AC,O为AB的中点,以O为圆心,OB为半径的圆交BC于D,过D作DEAC于E (1)求证:DE是O的切线 (2)若点O沿AB向点B运动,其它条件不变,那么DE与O有什么位置关系?并证明(3)若AB=AC=5,SinA=,那么圆心O在AB的什么位置时,O与AC相切?请说明理由8知ABC内接于以AB为直径的O过C作O的切线交AB的延长线于D,DA:AB=1:2 (1)求CDB的度数 (2)在切线DC上截取CE=CD,连接EB,判断EB与O有什么位置关系?并证明 (3)利用图中已标明的字母,连接线段,指出至少5对相似三角形(不
10、包含全等,不需要证明)25如图A为O的直径EF上的一点,OB是和这条直径垂直的半径,BA和O相交于另一点C,过C的切线交EF的延长线于D,(1)求证:DA=DC AbxAC=AExAF (2)当DF:EF=1:8且DF=时,求ABxAC的值 (3)现将直径EF所在的直线向上平移到如图所示的位置其它条件不变,试猜想DA=DF是否仍然成立?26、如图1,AB,AC分别为o的直径和弦,D为的中点,过点D的切线与AC的延长线相交于点E。求证:DEAC; 求证:AD2=AE·AB;试判断EA,EC,ED三条线段之间的数量关系,并证明;过点D作DFAB于F,如图2, 求证:EC·EAA
11、F·BF; 27、如图1,已知AB是o的直径,延长AB到D,过D作o的切线DC,C为切点。求证:DC2=DA·DB;如图2,求证:;若DC6,求AB的长;如图3,过点C作CGAB于F,交o于G,若,BD=9,求 o的半径及SinD; 28、已知:AB是o的直径,BC是切线,切点为B,DC是o的切线。求证:OCAD; 若圆的半径为R, 求证:AD·CO2R2;在的条件下,若OA2,ADOC6,求CD的长;延长 CD,BA相交于点E,若EA1,ED2,求tanEDA;若AD2,DC,求tanEDA;若AE3,CD:DE2:3,求 o的半径;若BC6, o的半径为3,求
12、AD的长;若ABBC2, 求ED:EC;29、如图,在ABC中,以BC为直径的O交AB于点F,E为AC上一点,EF是O的切线,E为AC的中点。1求证:AC是O的切线;2求证:AF·AB=4EF2 ;3连接OE,若四边形OEFB是平行四边形,求SinABE的值; 30、ABC是o的内接三角形,弦AD平分BAC,交BC于点E 。求证:AB·ACAD·AE;求证:BD2DE·DA;求证:AD2BD2AB·AC;求证:AE2BE·ECAB·AC; 31、如图,四边形ABCD内接于o,过点C的直线分别交AB、AD于F、H,AC平分BA
13、D,HFBD。求证:FH是o的切线;求证:BC2CE·CA;求证:CD2AB·DH;若I是ABD的内心,试判断CI、CE、CA之间的数量关系,并证明;32ABAC,以AB为直径O交BC于点D,交AC于点E。1求证:DEBC。2已知AB5cm,DE3 cm,求BE的长。3过点D作DFAC,求证:F是CE的中点。4在的条件下,求证:BC24CF·CA。5若ABBC56,AE7,求CF的长。 33、已知ADBC,BCD900,以AB为直径的O与DC相切于点E,交BC于F。1求证:AE平分BAD。2求证:AD+BC=AB。3求证:点E是DC的中点。4试判断AD与FC的关系
14、,并证明。5求证:DC2=4AD·BC。6试判断AD,AE,AB三条线段之间数量的关系,并证明。34、如图,割线ABC与O相交于B,C两点,D为O上一点,ACOE于F,DE交AC于G,ADG=AGD,1求证:AD是O的切线。2试探究线段AD,AB,AC之间的数量关系,并证明。3若AB=2,AD=4,EG=2, 求O的半径。35、如图BC为半园O的直径,ADBC,=,BF和AD交于E。1求证:AB2=BE·BF。2求证:=。3连接OE,试判断OE与MC的关系,并证明。 36、ABC是O的内接三角形,D是的中点,延长DA,CB相交于点G。1求证:AB·ACAD
15、3;AG。2若AC为O的直径,EAG1200,BC6,求AG的长。3在的条件下,求证:BC2DA·DG。37、已知,o的内接四边形是ABCD,对角线AC与BD互相垂直于点E。1连接AO并延长,交o于点F,求证:AB·ADAE·AF。2若AF与BD相交于点M,求证:AB·BFAC·BM。3过点O作ONAB于N,试判断ON与CD之间的数量关系,并证明。 38、如图,PA为O的切线,PBC为割线,APC的平分线交AB于E,交AC于F,交O于Q。(1) 求证;PAE=C。 (2)求证:AE=AF。(3)求证: = (4)求证:=内部资料仅供参考9JWK
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34、pbK!zn%Mz849GxGjqvadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9C
35、pbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$U*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$v
36、STT#&ksv*3tnGK8!z89Amv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2
37、zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$U*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz84!z89Amv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA
38、5uxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$
39、U*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!z
40、n%MadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*adNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%
41、&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tn
42、GK8!z89AmYWv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$U*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89Amv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&
43、;ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWv*3tnGK8!z89AmYWpazadNu#KN&MuWFA
44、5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$U*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz84!z89Amv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYW
45、pazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$U*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9&gTXRm6X4NGpP$vSTT#&ksv*
46、3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$U*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjq
47、v$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNuGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&a
48、mp;gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm
49、6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pD
50、x2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$U*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89Amv$UE9wEwZ#QcUE%&
51、qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z
52、89AmYWv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$U*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%MzadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWF
53、A5uxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#
54、KN&MuWFA5uxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%
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56、2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$U*3tnGK8!z89AmYWpazadNu#KN&MuWF
57、A5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz84!z89Amv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&a
58、mp;qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$U*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$U
59、E9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$U*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!
60、z89AmYWpazadNuGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWw
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