A¡¢B¡¢CÊÇ´ó¼ÒÊìϤµÄÓëÉúÃü»î¶¯ÃÜÇÐÏà¹ØµÄÈýÖÖ»¯ºÏÎËüÃÇËùº¬ÔªËز»³¬¹ýÈýÖÖ£¬²¢ÓÐÏÂÁÐת»¯¹Øϵ£º

ÆäÖл¯ºÏÎïDÒ²ÊÇÈÕ³£Éú»îÖг£¼ûµÄ»¯ºÏÎÔÚÒ»¶¨Ìõ¼þÏ¿ÉÓëµ¥Öʼ׽øÒ»²½·¢ÉúÈçϱ仯£º

»Ø´ðÏÂÁÐÓйØÎÊÌ⣺
£¨1£©ÔÚA¡¢B¡¢C¡¢DËÄÖÖ»¯ºÏÖУ¬Ëùº¬ÔªËØÏàͬµÄÊÇ£¨Ð´ÎïÖÊÃû³Æ£©
 
¡¢
 
£®
£¨2£©³£ÎÂÏ£¬AºÍBÊÇͨ¹ýʲô;¾¶×ª»¯ÎªCµÄ£¿
 
£®
£¨3£©Ä¿Ç°£¬»¯ºÏÎïBÔÚ×ÔÈ»½çÖеĺ¬Á¿³ÊÉÏÉýÇ÷ÊÆ£¬¶Ô»·¾³²úÉúÁ˲»Á¼Ó°Ï죬·¢ÉúÕâÖֱ仯µÄÖ÷ÒªÔ­ÒòÊÇ
 
£®
¿¼µã£ºÎÞ»úÎïµÄÍƶÏ
רÌ⣺ÍƶÏÌâ
·ÖÎö£ºÓÉת»¯¹ØϵºÍDµÄ·´Ó¦¿ÉÖª£¬DÊÇÓлúÎ¸Ã·´Ó¦ÎªÓлúÎïȼÉÕ£¬¼×ΪO2£¬¿ÉÍÆÖªA¡¢B·Ö±ðΪH2O¡¢CO2£¬H2OºÍCO2ÔÚÖ²Îï¹âºÏ×÷ÓÃÏ¿ÉÒÔÉú³ÉÆÏÌÑÌÇÓëÑõÆø£¬CΪÆÏÌÑÌÇ£¬ÆÏÌÑÌÇÔÚÒ»¶¨Ìõ¼þÏÂת»¯Îª¾Æ¾«Óë¶þÑõ»¯Ì¼£¬ÔòDΪCH3CH2OH£¬¿óÎïȼÁϵÄȼÉÕ£¬µ¼Ö¶þÑõ»¯Ì¼ÔÚ´óÆøÖк¬Á¿³ÊÉÏÉýÇ÷ÊÆ£¬¼Ó¾çÎÂÊÒЧӦ£®
½â´ð£º ½â£ºÓÉת»¯¹ØϵºÍDµÄ·´Ó¦¿ÉÖª£¬DÊÇÓлúÎ¸Ã·´Ó¦ÎªÓлúÎïȼÉÕ·½³Ìʽ£¬¼×ΪO2£¬¿ÉÍÆÖªA¡¢B·Ö±ðΪH2O¡¢CO2£¬H2OºÍCO2ÔÚÖ²Îï¹âºÏ×÷ÓÃÏ¿ÉÒÔÉú³ÉÆÏÌÑÌÇÓëÑõÆø£¬CΪÆÏÌÑÌÇ£¬ÆÏÌÑÌÇÔÚÒ»¶¨Ìõ¼þÏÂת»¯Îª¾Æ¾«Óë¶þÑõ»¯Ì¼£¬ÔòDΪCH3CH2OH£¬
£¨1£©ÔÚ»¯ºÏÎïA¡¢B¡¢C¡¢DÖÐËùº¬ÔªËØÍêÈ«ÏàͬµÄÊÇÆÏÌÑÌÇ¡¢ÒÒ´¼£¬¹Ê´ð°¸Îª£ºÆÏÌÑÌÇ¡¢ÒÒ´¼£»
£¨2£©ÔÚ³£ÎÂÏ£¬H2OºÍCO2ÔÚÂÌÉ«Ö²Îï¹âºÏ×÷ÓÃÏÂת»¯ÎªÆÏÌÑÌÇ£¬
¹Ê´ð°¸Îª£ºÂÌÉ«Ö²Îï¹âºÏ×÷Óã»
£¨3£©¿óÎïȼÁϵÄȼÉÕ£¬µ¼Ö¶þÑõ»¯Ì¼ÔÚ´óÆøÖк¬Á¿³ÊÉÏÉýÇ÷ÊÆ£¬¼Ó¾çÎÂÊÒЧӦ£¬
¹Ê´ð°¸Îª£º¿óÎïȼÁϵÄȼÉÕ£®
µãÆÀ£º±¾Ì⿼²éÎïÖÊÍƶϣ¬ÌâÄ¿Éæ¼°ÓлúÎïÓëÎÞ»úÎïÍƶϣ¬¹Ø¼üÊÇÈ·¶¨DÓë¼×µÄ·´Ó¦ÎªÈ¼ÉÕ·´Ó¦£¬ÐèҪѧÉúÊìÁ·ÕÆÎÕÓлúÎïµÄÐÔÖÊÓëת»¯£¬ÄѶÈÖеȣ®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º ÌâÐÍ£º

£¨I£©ËáÓêÐγɵÄÖ÷ÒªÔ­ÒòÊÇ
 
£®
ij»¯Ñ§Ñ§Ï°Ð¡×é²É¼¯µÄËáÓêÑùÆ·£¬Ã¿¸ôÒ»¶Îʱ¼ä²â¶¨Ò»´ÎpHÖµ£¬µÃÊý¾ÝÈçÏ£¨Ìáʾ£ºpHԽСËáÐÔԽǿ£©
ʱ¼ä ¿ªÊ¼ 8hºó 16hºó 24hºó 32hºó 40hºó 48hºó
pH 5.0 4.8 4.6 4.3 4.2 4.0 4.0
ËáÓêÑùÆ·pHÖµ±äСµÄÖ÷ÒªÔ­ÒòÊÇ
 
£¬·¢ÉúµÄ·´Ó¦Îª
 
£®
£¨II£©A¡¢B¡¢C¡¢DÊÇÖÐѧ»¯Ñ§µÄ³£¼ûÎïÖÊ£¬ÆäÖÐA¡¢B¡¢C¾ùº¬ÓÐͬһÖÖÔªËØ£®ÔÚÒ»¶¨Ìõ¼þÏÂÏ໥ת»¯µÄ¹ØϵÈçͼËùʾ£¨²¿·Ö·´Ó¦ÖеÄH2OÒÑÂÔÈ¥£©£®ÇëÌî¿Õ£º

£¨1£©ÈôA¿ÉÓÃÓÚ×ÔÀ´Ë®Ïû¶¾£¬DÊÇÉú²ú¡¢Éú»îÖÐÓÃÁ¿´ó¡¢ÓÃ;¹ãµÄ½ðÊôµ¥ÖÊ£¬Ð´³öÓÃAÖÆƯ°×·ÛµÄ»¯Ñ§·´Ó¦·½³Ìʽ
 
£®
£¨2£©ÈôDÓëC60»¥ÎªÍ¬ËØÒìÐÎÌ壬AÓëO3»¥ÎªÍ¬ËØÒìÐÎÌ壬ÔòCÔڸ߯Á¶ÌúÖеÄÖ÷Òª·´Ó¦·½³ÌʽΪ
 
£®
£¨3£©ÈôDÊÇ¿ÕÆøÖÊÁ¿Ô¤±¨Òª±¨µÄÆøÌ壬ÏàͬÌõ¼þÏÂÃܶÈÊÇÑõÆøµÄÁ½±¶£¬AÊÇÉÕ¼îÈÜÒº£¬Ôò¿ÉÒÔÑéÖ¤BÊÇ·ñ±äÖʵÄÒ»×éÊÔ¼ÁÊÇ
 
£¨Çëд³öÊÔ¼ÁÃû³Æ£©£®ÈôÒѲ¿·Ö±äÖÊÔòʵÑéÏÖÏóΪ
 
£®
£¨4£©ÈôAΪ°±Æø£¬CΪ¶þÑõ»¯µªÆøÌ壬Ôò·´Ó¦¢ÙµÄ»¯Ñ§·½³ÌʽΪ
 
£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º ÌâÐÍ£º

£¨1£©ÓÃϵͳÃüÃû·¨ÃüÃûÏÂÁÐÓлúÎï
¢Ù
 

¢Ú
 

£¨2£©»­³ö4-¼×»ù-2-ÒÒ»ù-1-ÎìÏ©µÄ¼üÏßʽ
 
£¬¸ÃÓлúÎïÓë×ãÁ¿ÇâÆø¼Ó³ÉºóµÃµ½µÄÌþµÄÃû³ÆÊÇ
 

£¨3£©º¬ÓеĹÙÄÜÍÅÃû³ÆΪ
 
£¬°´Ì¼µÄ¹Ç¼Ü·ÖÀ࣬ËüÊôÓÚ
 
À࣬ÒòÐé¿òÍâµÄÔ­×ÓÍÅÒì¹¹ÐγɵÄÒì¹¹ÌåÓÐ
 
ÖÖ£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º ÌâÐÍ£º

ÒÑ֪ijÓлúÎïµÄÏà¶Ô·Ö×ÓÖÊÁ¿Îª58£¬¸ù¾ÝÏÂÁÐÌõ¼þ¸÷д³öÒ»¸ö½á¹¹¼òʽ£º
£¨1£©Èô¸ÃÓлúÎïÖ»ÓÉ̼¡¢ÇâÁ½ÔªËØ×é³É£¬·Ö×ÓÖÐÓÐÈý¸ö¼×»ù£¬½á¹¹¼òʽΪ
 
£®
£¨2£©Èô¸ÃÓлúÎïΪº¬ÑõÑÜÉúÎÇÒ·Ö×ÓÖÐÓÐ-CH3£¬½á¹¹¼òʽΪ
 
£®
£¨3£©Èô¸ÃÓлúÎï·Ö×ÓÖÐÓÐ-OH£¬ÎÞ̼̼˫¼ü£¬½á¹¹¼òʽΪ
 
£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º ÌâÐÍ£º

ijÑо¿ÐÔѧϰС×齫һ¶¨Å¨¶ÈµÄNa2CO3ÈÜÒºµÎÈëMgSO4ÈÜÒºÖеõ½°×É«³Áµí£®¼×ͬѧÈÏΪÁ½Õß·´Ó¦Ö»Éú³ÉMgCO3Ò»ÖÖ³Áµí£»ÒÒͬѧÈÏΪÕâÁ½ÕßÏ໥´Ù½øË®½â£¬Ö»Éú³ÉMg£¨OH£©2Ò»ÖÖ³Áµí£»±ûͬѧÈÏΪÉú³ÉMgCO3ºÍMg£¨OH£©2Á½ÖÖ³Áµí£®£¨²éÔÄ×ÊÁÏÖª£ºMgCO3ºÍMg£¨OH£©2¾ù²»´ø½á¾§Ë®£©
£¨1£©°´ÕÕÒÒͬѧµÄÀí½âNa2CO3ÈÜÒººÍMgSO4ÈÜÒº·´Ó¦µÄ»¯Ñ§·´Ó¦·½³ÌʽΪ
 
£»
ÔÚ̽¾¿³ÁµíÎï³É·ÖÇ°£¬Ð뽫³Áµí´ÓÈÜÒºÖзÖÀë²¢¾»»¯£®¾ßÌå²Ù×÷Ϊ¢Ù¹ýÂË¡¡¢ÚÏ´µÓ¡¡¢Û¸ÉÔ
£¨2£©ÇëÓÃÈçͼËùʾװÖã¬Ñ¡ÔñºÏÊʵÄʵÑé×°ÖúͱØÒªµÄÊÔ¼Á£¬Ö¤Ã÷³ÁµíÎïÖÐÖ»ÓÐ̼Ëáþ£®

¢Ù¸÷×°ÖÃÁ¬½Ó˳ÐòΪ
 
£¨ÓÃ×°ÖñàºÅ±íʾ£©£»
¢Ú×°ÖÃCÖÐ×°ÓÐÊÔ¼ÁµÄÃû³ÆÊÇ
 
£»
¢ÛÄÜÖ¤Ã÷Éú³ÉÎïÖÐÖ»ÓÐMgCO3µÄʵÑéÏÖÏóÊÇ
 
£®
£¨3£©ÈôMg£¨OH£©2ºÍMgCO3Á½Õ߶¼ÓУ¬¿Éͨ¹ýËùʾװÖõÄÁ¬½Ó£¬½øÐж¨Á¿·ÖÎöÀ´²â¶¨Æä×é³É£®

¢ÙʵÑé½áÊøʱͨÈë¹ýÁ¿µÄ¿ÕÆøµÄ×÷ÓÃÊÇ
 
£®
¢ÚA×°ÖúÍE×°ÖõĹ²Í¬×÷ÓÃÊÇ
 
£®
¢ÛʵÑé¹ý³ÌÖвⶨµÄÊý¾ÝÓУºW1£ºÑùÆ·µÄÖÊÁ¿£¬W2£º·´Ó¦ºó×°ÖÃBÖвÐÔüµÄÖÊÁ¿£¬W3£º·´Ó¦Éú³ÉË®µÄÖÊÁ¿£¬W4£º·´Ó¦Éú³É¶þÑõ»¯Ì¼µÄÖÊÁ¿£¬ÎªÁ˲ⶨÆä×é³É£¬ÖÁÉÙÐèÒªÆäÖÐ
 
¸öÊý¾Ý£¬Ç뽫¿ÉÄܵÄ×éºÏÌîÈëϱíÖУ¨Ã¿¸ö¿Õ¸ñÖÐÌîÒ»ÖÖ×éºÏ£©£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º ÌâÐÍ£º

ÓÃ18.4mol/LµÄŨÁòËáÏ¡ÊͳÉ0.92mol/LµÄÏ¡ÁòËá100ml£¬»Ø´ðÏÂÁÐÎÊÌ⣺
£¨1£©
ӦȡŨÁòËáµÄÌå»ý/ml ӦѡÓÃÈÝÁ¿Æ¿µÄ¹æ¸ñ/mL ³ýÈÝÁ¿Æ¿Í⻹ÐèÒªµÄÆäËüÒÇÆ÷
£¨2£©ÅäÖƲÙ×÷¿É·Ö½â³ÉÈçϼ¸²½£º
A ÏòÈÝÁ¿Æ¿ÖÐ×¢ÈëÉÙÁ¿ÕôÁóË®£¬¼ì²éÈÝÁ¿Æ¿ÊÇ·ñ©ˮ
B ÓÃÉÙÁ¿ÕôÁóˮϴµÓÉÕ±­£¬½«ÈÜҺעÈëÈÝÁ¿Æ¿£¬²¢Öظ´²Ù×÷Á½´Î
C ½«ÒÑÀäÈ´µÄÁòËá×¢ÈëÈÝÁ¿Æ¿ÖÐ
D ¸ù¾Ý¼ÆË㣬ÓÃÁ¿Í²Á¿È¡Ò»¶¨Ìå»ýµÄŨÁòËá
E½«Å¨ÁòËáÑØÉÕ±­±ÚÂýÂý×¢ÈëÊ¢ÓÐÕôÁóË®µÄСÉÕ±­ÖУ¬²¢²»¶ÏÓò£Á§°ô½Á°è
F ¸ÇÉÏÈÝÁ¿Æ¿Èû×Ó£¬Õñµ´£¬Ò¡ÔÈ£¬×°Æ¿
G ÓýºÍ·µÎ¹Ü¼ÌÐø¼ÓÕôÁóË®£¬Ê¹ÈÜÒº°¼ÃæÇ¡ºÃÓë¿Ì¶ÈÏàÇÐ
H ¼ÌÐøÍùÈÝÁ¿Æ¿ÖÐСÐĵؼÓÕôÁóË®£¬Ê¹ÒºÃæ½Ó½ü¿Ì¶ÈÏß
ÕýÈ·µÄ²Ù×÷˳ÐòÊÇ£ºA
 
F
£¨3£©ÏÂÁвÙ×÷½á¹û£¬Ê¹ÈÜÒºÎïÖʵÄÁ¿Å¨¶ÈÆ«µÍµÄÊÇ
 

A  Ã»Óн«Ï´µÓҺתÒƵ½ÈÝÁ¿Æ¿ÖÐ
B  ÈÝÁ¿Æ¿Ï´¾»ºóδ¾­¸ÉÔï´¦Àí
C  ×ªÒƹý³ÌÖÐÓÐÉÙÁ¿µÄÈÜÒº½¦³ö
D  Ò¡ÔȺóÁ¢¼´¹Û²ì£¬·¢ÏÖÈÜҺδ´ï¿Ì¶ÈÏߣ¬Ã»ÓÐÔÙÓõιܼӼ¸µÎÕôÁóË®ÖÁ¿Ì¶ÈÏߣ®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º ÌâÐÍ£º

ijÑо¿ÐÔѧϰС×éÉè¼ÆÓÃÈçÏ·½·¨²â¶¨Ä³¾ÓÊÒ¿ÕÆøÖм×È©£¨HCHO£©µÄº¬Á¿£®
¢ñ£®²â¶¨Ô­Àí£º4MnO4-+5HCHO+12H+¨T4Mn2++5CO2¡ü+11H2O£»2MnO4-+5H2C2O4+6H+¨T2Mn2++10CO2¡ü+8H2O
¢ò£®²â¶¨×°Ö㺲¿·Ö×°ÖÃÈçͼ1Ëùʾ£¨a¡¢bΪֹˮ¼Ð£©

¢ó£®ÊµÑé²½Ö裺
¢ÙÈçͼËùʾ£¬´ò¿ªa£¬¹Ø±Õb£¬ÓÃ×¢ÉäÆ÷³éÈ¡100mLÐÂ×°ÐÞµÄÊÒÄÚ¿ÕÆø£®¹Ø±Õa£¬´ò¿ªb£¬ÔÙ»º»ºÍƶ¯×¢ÉäÆ÷£¬½«ÆøÌåÈ«²¿ÍÆÈëËáÐÔ¸ßÃÌËá¼ØÈÜÒº£¨25.00mL 1.00¡Á10-3mol?L-1£©ÖУ¬Ê¹Æä³ä·ÖÎüÊÕ£®ÔÙÈç´ËÖظ´¼¸´Î£®
¢Ú½«ÒÇÆ÷AÖеÄÈÜҺȫ²¿×ªÈë׶ÐÎÆ¿ÖУ¬ÓÃ2.00¡Á10-3mol?L-1µÄ²ÝËᣨH2C2O4£©±ê×¼ÈÜÒºµÎ¶¨×¶ÐÎÆ¿ÖеÄÈÜÒº£¬¼Ç¼µÎ¶¨ËùÏûºÄµÄ²ÝËáÈÜÒºµÄÌå»ý£®
Çë»Ø´ðÎÊÌ⣺
£¨1£©ÒÇÆ÷AµÄÃû³ÆΪ
 
£®ÊµÑé²½Öè¢ÙÖظ´¼¸´Îºó£¬·¢ÏÖÒÇÆ÷AÖеÄÈÜÒºÍêÈ«ÍÊÉ«ÁË£¬´¦ÀíµÄ·½·¨ÊÇ
 
£®
£¨2£©ÊµÑé²½Öè¢ÚµÄµÎ¶¨¹ý³ÌÖвÙ×÷µÎ¶¨¹ÜµÄͼʾÈçͼ2ÕýÈ·µÄÊÇ
 
£¨Ìî±àºÅ£©£®
£¨3£©Åжϵ½´ïµÎ¶¨ÖÕµãµÄʵÑéÏÖÏóÊÇ
 

£¨4£©Ôڵζ¨¹ý³ÌÖУ¬ÏÂÁÐÒÇÆ÷Öв»±ØÒªÓõ½µÄÓÐ
 
£®£¨ÓñàºÅ±íʾ£©£®
¢ÙËáʽµÎ¶¨¹Ü   ¢Ú¼îʽµÎ¶¨¹Ü    ¢ÛpH¼Æ    ¢Ü²£Á§°ô    ¢Ý׶ÐÎÆ¿
£¨5£©ÒÔÏÂʵÑé²Ù×÷»áµ¼Ö¼×È©º¬Á¿Æ«µÍµÄÊÇ
 
£¨ÓÃÏàÓ¦µÄ±àºÅÌîд£©
A£®×¢ÉäÆ÷ѹËÍÆøÌåʱËٶȹý¿ì
B£®ÒÇÆ÷AÖеÄÈÜҺתÈë׶ÐÎÆ¿ºó£¬Ã»ÓÐÏ´µÓÒÇÆ÷A£®
C£®Ôڵζ¨Ç°×°ÓвÝËá±ê×¼ÈÜÒºµÄµÎ¶¨¹Ü¼â×첿·ÖÓÐÆøÅÝ£¬¶øµÎ¶¨½áÊøºóÆøÅÝÏûʧ
D£®×¶ÐÎÆ¿ÖÐûÓÐÓôý×°ÒºÈóÏ´£¬Æ¿ÖÐÓÐÉÙÁ¿Ë®
E£®µÎ¶¨¿ªÊ¼Ê±ÑöÊÓ¶ÁÊý£¬µÎ¶¨ÖÕµãʱ¸©ÊÓ¶ÁÊý£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º ÌâÐÍ£º

»¯Ñ§Óë¼¼Êõ¡¢Éç»áºÍ»·¾³ÃÜÇÐÏà¹Ø£®ÏÂÁÐ˵´íÎóµÄÊÇ£¨¡¡¡¡£©
A¡¢ÃºÌ¿¾­Æø»¯¡¢Òº»¯ºÍ¸ÉÁóµÈ¹ý³Ì£¬¿ÉÒÔת»¯ÎªÇå½àÄÜÔ´
B¡¢ÀûÓöþÑõ»¯Ì¼ÖÆÔìÈ«½µ½âËÜÁÏ£¬¿ÉÒÔ»º½âÎÂÊÒЧӦ
C¡¢³ä·Ö¿ª·¢ÀûÓÃÌìÈ»ÏËά£¬Í£Ö¹Ê¹Óø÷ÖÖ»¯Ñ§ºÏ³É²ÄÁÏ
D¡¢¼Ó´ó½Õ¸ÑµÄ×ÛºÏÀûÓã¬Èç·¢½ÍÖÆÕÓÆø¡¢Éú²úÒÒ´¼µÈ£¬Ìá¸ß×ÊÔ´µÄÀûÓÃÂÊ

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º ÌâÐÍ£º

»ðÒ©ÊÇÖйúµÄ¡°ËÄ´ó·¢Ã÷¡±Ö®Ò»£¬ºÚ»ðÒ©ÔÚ·¢Éú±¬Õ¨Ê±£¬·¢ÉúÈçϵķ´Ó¦£º2KNO3+3C+S¨TK2S+N2¡ü+3CO2¡ü
ÏÂÁÐ˵·¨Öв»ÕýÈ·µÄÊÇ£¨¡¡¡¡£©
A¡¢Ñõ»¯¼ÁÊÇKNO3ºÍS£¬±»Ñõ»¯µÄÔªËØÊÇC
B¡¢Ã¿Éú³É1molN2£¬×ªÒƵç×ÓµÄÎïÖʵÄÁ¿Îª12mol
C¡¢Ã¿ÏûºÄ3.2gSʱ£¬Éú³ÉµÄÆøÌåÌå»ýΪ8.96L
D¡¢·´Ó¦Öл¹Ô­¼ÁÓë±»»¹Ô­ÎïÖʵÄÎïÖʵÄÁ¿Ö®±ÈΪ3£º2

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸