<xmp id="kys4e"><nav id="kys4e"></nav>
  • <xmp id="kys4e">
  • <menu id="kys4e"></menu>
    <nav id="kys4e"></nav>

    5G將如何改變我們的教育

    2019-07-04 06:19:49 環球時報

    朱永新

    如果說,2017年被認為是人工智能年的話,那么,2019年將注定作為5G年而載入史冊。6月6日,中華人民共和國工業和信息化部在全球首先發放了5G商用牌照,標志著5G技術正式進入應用。

    6月27日,世界移動大會在上海召開。中國移動在大會上舉行了“5G賦能教育·智慧點亮未來”的分論壇。論壇上發布的《5G智慧校園白皮書》,提出了教育教學、教育管理、校園生活、雪亮校園、教育評價、5G特色應用等六大智慧教育應用場景及解決方案,宣稱將通過利用5G、云計算、大數據、人工智能等信息技術手段,全面賦能智慧校園建設,標志著5G技術開啟在教育上的應用。

    5G,是第五代無線網絡的簡稱,它與目前使用的4G相比,具有三個顯著的特點,即高速率、低延遲、高容量。因此,5G在教育上的應用,也有著幾個重要的特點。一是大大擴展了物聯網網絡容量。通過物聯網應用程序可以幫助教師更方便地獲得關于學生學習的各種數據,提高教育的有效性。二是較低的延遲和較高的速度將擴展VR/AR的應用,擴大課堂中混合現實內容和視頻的容量。預計5G的延遲時間將減少到10毫秒以下,是人眨眼時間的1/30,會大大改善VR/AR的用戶體驗,成為教師更有用的教學工具。三是視頻與遠程同步課程會變得非常便捷,將會更好地推動城鄉教育資源共享。

    因此,近日有不少媒體發出了“5G賦能教育”“5G改變教育”“5G推進教育公平”等評論,教育界關于5G與教育關系的討論也熱鬧非常。那么,5G的普及是否會改善各地區之間教育資源不平衡的狀態呢?5G究竟會對教育產生怎樣的影響呢?

    的確,從教育的歷史來看,每一次技術的進步,都會推動教育的變革。但是,技術的革命究竟如何影響教育,在不同的時代也有不同的路徑。

    由于教育與我們每個人利益攸關,人們特別期盼新的技術革命能夠成為變革教育的神器,正像互聯網顛覆了商業模式,顛覆了金融體系一樣,希望以5G為代表的新技術能夠徹底改變我們的教育。

    早在上個世紀60年代計算機開始出現的時候,就有學者想用機器教學替代人的教學,甚至還有人提出了“學校消亡論”。互聯網出現以后,更是有學者呼吁通過網絡技術來顛覆當下的教育。在這方面,世界各國的努力程度和投入力度非常之大,也遠遠大于商業與金融業。

    但是,一直到今天,教育并沒有發生根本性的變化。據說,蘋果公司創始人喬布斯生前曾經提出一個著名的“喬布斯之問”:“為什么計算機改變了幾乎所有領域,卻唯獨對學校教育的影響小得令人吃驚?”對于這個耐人尋味的問題,2011年9月,美國前聯邦教育部長鄧肯給出了答案:原因在于“教育沒有發生結構性的改變”。

    一般認為,信息技術在教育領域的應用可分為三個階段:工具與技術的改變、教學模式的改變和學校形態的改變。電化教育、PPT課件等都是工具與技術層面的變革,慕課、翻轉課堂等是教學模式的變革,這些都是教育的局部變革,而且都是非剛需性變革。如果學校形態不發生深刻的變革,教育結構不發生相應的變化,真正意義上的教育變革是非常困難的,甚至從本質上幾乎是不可能的。

    作為一種文化樣式和意識形態,作為與人的身心發展和國家的前途命運緊密聯系的教育,變革的難度和復雜程度,遠遠超出我們許多人的想象。所以,要想解決教育的問題,僅僅有技術是不夠的。不能指望通過技術的革命,我們就能一勞永逸地把教育問題解決了。這是不切實際的。5G技術對教育的影響,也是如此。

    到目前為止,我們對5G與教育關系的研究,主要仍然局限在技術、工具與教學模式的問題上,也就是說,仍然停留在前面兩個層次上,而很少從第三個層次,即學校形態與教育結構方面進行真正的思考。

    那么,究竟如何從第三個層次上突破呢?最近,我的新著《未來學校:重新定義教育》對這一問題進行了初步的梳理,提出了把學校建成新型的學習中心,充分利用5G技術背景下教育資源獲取的便利性、即時性、共享性特點,對現在的學校進行重構,建立國家優質教育資源中心和新型的學分銀行制度,打通學校與學校、學校與社會教育機構、學校與家庭的壁壘,創造“能者為師”“課程為王”的新的構想。在學校形態和教育結構進行變革的背景之下,再利用現在的5G、大數據、人工智能等現代技術,一套新的教育生態系統,一種面向未來的教育模式,就完全可以成為現實。▲

    (作者是蘇州大學新教育研究院教授、全國政協常委兼副秘書長)

    ?
    天福彩票平台天福彩票主页天福彩票网站天福彩票官网天福彩票娱乐 www.yu49.com | www.177888.com | 3559eee.com | www.1429h9.com | www.729198.com | m3405.com | www.97060c.com | www.160326.com | 2535hd.com | www.55676f.com | zz5144.com | www.7830b.com | www.68689p.com | 65561155.com | www.80188c.com | 58222b.com | www.alpk77.com | www.50052c.com | aaa5701.com | www.dcw88.com | www.178756.com | 20204.com | www.pjzxyl.cn | bwin68222.cc | www.8886hj.com | 6040044.com | www.88837p.com | www.693119.com | 2618g.com | 7742gg.com | www.7893w4.com | www.12015.cc | 8547tt.com | www.33pjjt.com | 1064g.com | www.56830f.com | www.670369.com | 65005f.com | www.aobo194.com | 3405rrr.com | www.hyi3.com | 69111f.com | www.328466.com | www.41518a.com | www.900y.com | www.314077.com | www.ylhg3838.com | www.681048.com | www.gh0091.com | www.zhang258.com | 23249.com | www.2632r.com | owlsllzv.cn | www.ribo23.cc | pj200.cc | www.16065w.com | 4255www.com | www.2894.com | pp01234.com | www.4102l.com | 2077hh.com | www.2021n.com | ylg2001.com | www.00773q.com | 9103mm.com | www.3983119.com | 33318m.com | www.38138s.com | 2277bet.com | www.5099nn.com | 7893w14.com | www.009319.com | 680556.com | www.91779o.com | pp8662.com | www.58908a.com | 2324www.com | www.bmw8066.com | 91019j.com | www.81520b.com | zhcp30.com | www.11gpc.com | www.854556.com | www.599581.com | www.7111x.com | www.097037.com | www.ok49.com | 2257019.com | www.377666e.com | am772.cc | www.21202o.com | 6830dd.com | www.cp8014.cc | www.4107c.com | www.126730.com | www.am1155.com | 4036mm.com | www.16181t.com | 7686m.com | www.720650.com | 2190m.com | www.836595.com | www.18shenbo.com | vip83068.com | www.4102c.com | js8800.net | www.897743.com | www.0151u.com | 6830j.com | www.89599h.com | 3405rrr.com | www.60123k.com | www.716988.com | www.luck886.com | www.767c.cc | www.155091.com | www.110741.com | 7599pp.com | www.db486.com | 5589333.com | www.530861.com | www.302848.com | 8159iii.cc | www.1466h.com | 8866vn77.com | 30019x.com | www.cp88168.xn | 4152r.com | www.7782j.com | www.655666c.com | 159666328.com | www.778305.com | 500000351.com | dx888.com | www.28000j.com | 33112007.com | www.515049.com | www.984365.com | www.7886262.com | www.md006.com | 5544vn77.com | www.340.com | 1775w.com | 8547ww.com | www.79095q.com | 365488.bet | 9964n.com | www.411559.com | 2267t.com | www.281380.com | www.4694e.com | k353.com | 2643u.com | www.200068.com | www.f50336.com | 65335.com | www.2418i.com | www.1818810.com | 7736t.com | www.78995.com | www.2997701.com | 888.vip | www.58ipo.com | www.508345.com | 7200199.com | www.186763.com | www.91779u.com | 44436588.com | 32126l.net | www.55228d.com | www.026789.com | 7599m.com | www.713667.com | www.8313o.com | 3258s.com | bet365vip.com | www.bet365195.com | www.xpj99896.com | 4022cc.com | www.346918.com | www.40288f.com | www.pjbet888.com | f666.org | www.338785.com | www.6880dd.com | www.192022.com | b1654.com | www.610659.com | www.bwinyz45.com | www.7630679.com | js89w.vip | www.572699.com | www.1754d.com | www.8124i.com | hr1333.com | www.553398.com | www.4102f.com | www.99927nn.com | a18880.com | jbb83.cc | www.5484d.com | www.y456x.com | www.vnsr500.com | 0220098.com | www.364141.com | www.326636.com | www.a3a777.cc | 3103.com | 5478x.com | www.897967.com | www.jsc799.com | www.hg7803.com | 76543m.com | 23233s.com | www.599416.com | www.js56775.com | www.xy9999.com | 11989u.com | 2998r.com | www.102386.com | www.61233hh.com | www.55549.cc | www.39695n.com | dz3222.com | 83golf.com | www.785382.com | www.hg860011.com | www.j99888.com | www.68666m.com | 7726zzz.com | da1369.com | www.798288.com | www.68993279.com | www.88266.com | www.yl66636.com | 9030y.com | 146030.com | 0055886.com | www.820380.com | www.6678578.com | www.668cp88.com | www.7893w9.com | j61653.com | 9464003.com | 98955c.com | www.122888a.com | www.1466s.com | www.4963tt.com | www.330099u.com | 3245b.com | 2324ccc.com | 36502w.com | www.150822.com | www.3478x.cc | www.yun0123.com | www.4058u.com | www.huamu51.com | www.bet1105.com | feicai0572.com | 12274466.com | 2381ccc.com | js8800vip.com | www.799243.com | www.61233s.com | www.46876.com | www.hg8.com | www.3650092.com | www.7025z.com | 12742g.com | 1588666.com | 8522yyyy.com | 041122r.com | 44betbet365.com | www.250209.com | www.kc66.com | www.4dwj.com | www.50022c.com | www.705323.com | www.930210.com | www.c46.bet | www.922646.com | www.9999304.com | www.32126j.net | js5651js.com | 2643b.com | 80368m.com | 32666p.com | hg2088.com | 8449vv.com | x171717.com | 3556vip7.com | 55797r.com | www.83033i.com | www.362322.com | www.646452.com | www.cp8001.cc | www.77ckb.com | www.74972.com | www.60123m.com | www.725609.com | www.zzyl61.com | www.vnsr2345.com | www.9464004.com | www.279050.com | www.d69096.com | www.8473n.com | www.jz3888.com | www.twcp05.com | www.7817g.vip | www.005mgm.com | www.80834.com | www.119k8.com | www.6685555.com | www.444559.com | www.8896kk.com | www.js297.com | www.49487.com | www.0333444.com | www.73518.com | www.888zhenren20.com | www.bm246.com | www.pj2348.com | www.yingle33.com | www.808888.tw | www.gm41.com | www.00778c.com | www.3337795.com | www.490802.com | www.63800v.com | www.8998833.com | www.7239q.com | www.61497.com | www.3478s.cc | www.858659.com | www.535267.com | www.130511.com | mgm.tt | 56987nn.com | 30688.com | bm1103.com | 3559tt.com | bj299.com | www.81866e.com | www.www-hg127.com | www.330099m.com | www.6008876.com | www.j3566.com | www.10999r.com | www.1538222.com | www.dayou266.com | www.66ffl.com | www.373500.com | dzyy634.com | dlzzx.com | 88993q.com | y2537.com | 18438c.com | www.333133i.com | www.767a.cc | www.55545o.com | www.883399a.com | www.95777w.com | www.911750.com | www.178075.com | 38989i.com | 3678c.com | 3122oo.com | www.326365.com | www.8799.cc | www.26123bb.com | www.win1237.com | www.103ak.com | www.309939.com | 18438cj.com | 4288vv.com | 6220yy.com | www.84898v.com | www.50999c.com | www.300726.com | www.tcsj.com | ra6616.com | 6150q.com | pj911a.cc | www.2090944.com | www.088tyc.com | www.0088hgee.com | www.bxcp4.com | hhhhh555.com | 9659x.com | www.743552.com | www.xj444555.com | www.560726.com | 5443h.com | 9068j.com | bb5443.com | www.239988.com | www.wd716.com | www.23456789.pw | 4152n.com | 386kzk.com | 35qq.vip | www.xpj4494.com | www.00772j.com | www.50052z.com | www.54400v.com | 0123.com | www.ts11888.com | www.936741.com | www.t22365.com | www.2019.com | www.61524s.com | 4116k.com | z21148.com | www.yinhe9507d.com | www.938f.cc | www.08588i.com | www.126059.com | 0166e.com | www.6491m.com | www.00618a.com | www.5091w.com | 3844z.com | x33e.vip | www.66335.com | www.dsj11.com | www.39500e.com | 896288.com | www.4972gg.com | www.j063801.com | www.937816.com | 67877g.com | 79889g.com | www.yk222a.com | www.2109s.com | 111122aa.com | P35v.com | www.dzj.cm | www.hm6333.com | afcp04.com | www.pj5908.com | www.10999a.com | www.881805.com | 1434o.com | www.js16123.com | www.490805.com | www.262771.com | 4255cc.com | www.64566t.com | www.4323s.com | 8742nn.com | 8742aa.com | www.00773o.com | www.655903.com | 99345.com | www.ylzz770.com | www.90555.net | 6175x.com | 1669t.com | www.8645001.com | www.375931.com | 22207w.com | www.50373.com | www.5095u.com | 33bwi.com | www.20167744.com | www.91233s.com | 37111v.com | www.4x0048.com | www.28891c.com | 1591003.com | www.yh8888.cc | www.52062l.com | feicai0537.com | 1592q.com | www.403678.com | 2844w.com | www.56733u.com | www.4102u.com | 4182z.com | www.933966.com | www.sb5058.com | 3132121.com | www.256333.com | www.36584444.com | 32355dd.com | www.hg0728.com | www.81233z.com | www.695037.com | q2490.com | www.9c567.com | www.hg3626.com | www.54400x.com | 8901.com | www.11kj.com | www.676944.com | 4182006.com | www.3116q.com | 655660011.com | www.i118cp.com | www.js1046.com | 33599tt.com | www.vns8970.com | www.371e.cc | 3950r.com | www.89599h.com | 8827xx.com | www.901718.com | www.77801q.com | 579336.com | www.5966hhh.com | www.339752.com | omp156.com | www.bj2222.com | 9464001.com | www.813365.com | www.151706.com | www.9599677.net | www.77802s.com | 40033ooo.com | www.xpj58111.com | 88552007.com | www.0885k.com | www.791571.com | 2373m.com | www.6939a.com | 4473.com | www.16181h.com | 2078b.com | www.095985.com | www.355225.com | www.777fhcp.com | www.32123t.com | 635288.com | www.9187c.com | dyxjjjc.gov | www.l5502.com | 11v111.com | www.7392022.com | www.330895.com | www.hg8786.org | www.126ll.com | 9149b.com | www.90305f.com | 6261s.com | www.68365n.com | 80567k.com | www.b3846.com | www.959579.com | le888k.com | www.50024x.com | 7570800.com | www.x99678.com | 67890qqq.com | www.75600y.com | 8890aa.com | www.467155.com | wx99.com | www.8808598.com | www.xjs8880.com | www.500.cm | cp019.com | www.305015.me | 18438444.com | www.c4042.com | 55909.com | www.77731l.com | y2516.com | www.998855g.com | 4018pp.com | www.894858.com | www.cp66611.com | www.yi636.com | 20775544.com | www.938627.com | www.38200g.com | www.538578.com | www.7111q.com | www.022197.com | www.wns7657.com | xpj718.com | www.h9478.com | qq365l.com | www.mgm868006.com | www.11gpc.com | 14340008.com | www.657069.com | www.4938i.com | xl18.org | www.hshg22.com | 883399f.com | www.6880oo.com | 187037.com | www.9422d.com | 667766h.com | www.11czt.com | www.bb5577.com | www.029509.com | www.ddpahv.com | 883399f.com | www.44118p.com | 009.so | www.2408b.cc | www.hg021.com | 1775hh.com | www.bscpjj.com | 7501122.com | www.hg27588.com | jnn006.com | www.515663.com | www.hg7853.com | 5281999.c0m | www.js89n.vip | 2757h.com | www.876928.com | www.6606979.com | 2828394.com | www.0600f.cc | 37570h.com | www.876899.com | www.hg8445.com | 3730.com | www.4988g.cc | www.6033t.com | www.50054v.com | www.346346.com | 4288xx.com | www.055x.cc | www.6347799.com | 44gg8332.com | www.hr1855.com | 66458e.com | www.39500e.com | www.5146z3.com | qq00558.com | www.978931.com | www.22447712.com | 972t.com | www.54968h.com | www.4972jj.com | bet36500220.com | 80368w.com | www.c4526.com | www.987125.com | 69443399.com | www.2875z.com | www.5888868.com | 97987-7.com | www.66653d.com | www.xin006.com | 6095-6095.com | www.7239k.com | www.3643f.com | 80368i.com | www.46689.com | www.7772558.com | bwin8r.com | www.08588i.com | www.330099g.com | 56988cc.com | www.39500k.com | www.5888868.com | 8015f.com | www.hx6600.com | www.tbet899.com | 4196b.com | www.535059.com | www.1111yh.vip | 131www.net | 22558332.com | www.hg0297.com | www.39695f.com | 71707h.com | www.600hc.com | www.u75778.com | hg3699.com | www.55885a.com | www.07679j.com | www.ag8801.com | 6266123.net | www.2875j.com | www.1429h9.com | 6939.com | 8988f.com | www.5958125.com | www.hgbet55.com | 65560066.com | www.876899.com | www.b35.com | www.k88875.com | 2613g.com | www.99jth.com | www.c3c3.com | hjdc975.com | 88xpj377.com | www.yl9819.com | nnn01234.com | www.937150.com | www.00772j.com | www.long260.com | rr38648.cc | www.976731.com | www.4078x.com | www.405776.com | 4747.com | www.533081.com | www.0600o.cc | www.833373.com | blr89.com | hhhhh555.com | www.35918q.com | www.998855q.com | s33334048.com | dd44d.net | www.701541.com | www.vnsr928.com | www.619406.com | hbs104.com | 5144m.com | www.5484g.com | www.bet91488.com | www.pjbet333.com | 53262ee.com | 17715.com | www.00840s.com | www.klcp385.com | www.333222o.com | 32666u.com | 66569.com | www.82676.com | www.5446oo.com | www.39695b.com | 7003rr.com | 3258n.com | www.931669.com | www.14168j.com | www.amdc0007.com | www.987msc.com | 3245q.com | vns900.net | www.530751.com | www.6939x.com | www.55526l.com | www.pjhebei.com | 9506u.com | 1077hhh.com | www.767884.com | www.1466d.com | www.a81b.cc | www.yinhecc55.com | 36405511.com | sjxche.com | 365vip60.co | www.40288.com | www.6786j.com | hjdc975.com | so33333.cc | 667766r.com | www.611306.com | www.pjzxyl.com | www.89599n.com | www.999dhygw.com | 7744bbb.com | 54147711.com | z3144.com | www.511642.com | www.68682h.com | www.06386666.com | www.499456.com | www.bj052.com | mm33.vip | 99567o.com | 44dd8331.com | www.808466.com | www.893267.com | www.4996xn.com | www.089456c.com | www.6491y.com | 0600t.cc | 82365d.com | 35252t.com | 56987qq.com | www.895544.com | www.15355hh.com | www.50685c.com | www.s948s.com | www.9566438.com | www.wns8.com | 8827gg.com | 41188822.com | 3890o.com | bbb2267.com | www.50052a.com | www.807839.com | www.21202q.com | www.hg7112.com | www.sb5504.com | www.k1235.com | www.22562b.com | www.30765.com | 06006e.com | 8988e.com | pj00hh.com | 30173366.com | yl66yl11.com | 3435l.com | 365102c.com | www.223075.com | www.911203.com | www.3478w.cc | www.78700b.com | www.5856867.com | www.22pjjt.com | www.4078n.com | www.938.cc | www.1880204.com | www.xpj00220.com | www.25288p.com | www.hg33711.com | www.56733h.com | 3838jsc.com | 68963999.com | 99151x.com | 25288b.com | 9339999m.com | 3957m.com | pp01234.com | g8009.com | 58222kk.com | 2064hb.com | 8722nnnn.com | s99345.am | swin7.com | ls887.com | 3122ee.com | 5856tt.com | jbb49.cc | 10050534.com | dafa89.net | 3y.com | 1458i.com | 61789j.com | 3990055.com | 5856sss.com | 23599f.com | 40033xxx.com | 8977ee.com | 61326655.com | 2905.cc | x86200.com | 0747g.com | 22883v.com | www.zz538.com | www.617707.com | www.h7788m.com | www.05125f.com | www.ra8804.com | www.msc385.com | www.490000.com | www.5504i.com | www.9737mm.me | www.hgdc900.com | www.88000xpj.com | www.742688.com | www.555999qipai.com | www.37377a.com | www.96386f.com | www.7782q.com | www.c5884.com | www.599748.com | www.196705.com | www.ab738.com | www.938a.cc | www.5981p.com | www.7036e.com | www.634331.com | www.41518f.com | www.dfyk3.com | www.550274.com | 7196ff.com | 88899.com | 86611e.com | dzc106.com | zunyi801.com | 8898111.com | www.hggj.ac | www.72265i.com | www.23 | www.vip9583.com | www.36589999.com | www.3478j.cc | www.526901.com | 22117u.com | bet365bet365005.com | 3566mm.com | 0747p.com | www.28758m.com | www.e2229e.com | www.335217.com | www.2566y1.com | www.71233p.com | www.796786.com | 228888c.com | 1466s.com | bet99339.com | 15a9.net | www.yh1618.com | www.5049o.com | www.280772.com | www.12455g.com | www.557031.com | pp7742.com | 12274477.com | 500000410.com | www.3236588.com | www.d444.com | www.vnsr938.com | www.33598y.com | www.514033.com | 56988ff.com | yh77333.com | qpby66.com | www.3170004.com | www.mgm868009.com | www.80wb.top | www.676477.com | 5622o.com | 4461s.com | www.81866j.com | www.1116609.com | www.a3410.com | www.38394.cc | www.52072i.com | ss76669.com | 2776s.com | www.vns8970.com | www.009289.com | www.65707j.com | www.305922.com | 7335f.com | 44488u.com | www.hg94777.com | www.p1432.com | www.3933d.cc | 50099n.com | 67890ggg.com | www.4759tt.com | www.h976.com | www.35898g.com | www.553938.com | 1463l.com | 9149.com | www.jing6665.com | www.xpj6.net | www.960913.com | 9068xx.com | 80368m.com | www.033001.com | www.hg888111.com | www.916270.com | 3807uu.com | 2649n.com | www.289333.com | www.flb377.com | www.602255.com | p82365.com | pj528.com | www.9928h.com | www.wd05.cc | 6002aa.com | 4136g.com | www.pj4180.com | www.47506c.com | www.946854.com | 5622h.com | 8827uuu.com | www.0082909.com | www.0073.com | w0000.vip | 521102.com | www.0088hg5.com | www.86339c.com | www.426689.com | 预览chunqiu6.com | www.vns0809.com | www.4058bb.com | www.911790.com | 3189e.com | www.6686tk.cc | www.bet63x.com | www.899485.com | 998q.cc | www.yh6996.com | www.530079.com | www.599810.com | y61.com | www.31399t.com | www.m63568.com | www.52072i.com | 50099y.com | www.kk2444.com | www.60007l.com | 6137g.net | qpby66.com | www.5981n.com | www.634679.com | 6150e.com | www.vns365x.net | www.3066hh.com | 11889193.com | 50023344.com | www.5981u.com | www.558401.com | w3410.com | www.72tk.com | www.27989.cc | 4060uu.com | www.39695r.com | www.8003xl.com | 3556.com | js29391.com | www.2021v.com | www.117015.com | 61326633.com | www.109015.com | www.911924.com | jj8159.cc | www.98qxw.com | www.26001.com | 8522ffff.com | www.wl6666.cc | www.78949s.com | m85323.net | www.msc00.la | www.550021l.com | df8jj.com | www.xpj8t8.com | www.944990.com | 1463l.com | www.330099r.com | www.96386l.com | 53262bb.com | www.8522cn.com | www.44458c.com | 55331vv.com | www.2091p.com | www.5091j.com | 2000c.cc | www.299366.com | www.951077.com | 34o35.com | www.twcp04.com | www.356387.com | 2381ggg.com | www.xpjylc008.com | 256777z.com | www.9374s.com | www.182323.com | 3566nn.com | www.js815.com | www.911720.com | 55331gg.com | www.57800t.com | haolemen.cc | www.hj4888.com | www.dayou567.com | j85686.com | www.785888.com | www.580671.com | jinlong02.com | www.8905k.com | 4052l.com | www.110978.com | www.995684.com | hg77702.com | www.598012.com | 01234ii.com | www.27878gg.com | www.c6883.com | hy738.com | www.86339q.com |