国产精品久久久久久二区_久久精品手机视频_久久99精品久久久久久噜噜_久久久久亚洲精品_国产高清视频在线观看_成人免费视频一区二区

2024年GMAT考试阅读模拟试题及答案5

雕龙文库 分享 时间: 收藏本文

2024年GMAT考试阅读模拟试题及答案5

  Selling Digital Music without Copy-protection Makes Sense

  A.  It was uncharacteristically low-key for the industry’s greatest showman. But the essay published this week by Steve Jobs, the boss of Apple, on his firm’s website under the unassuming title “Thoughts on Music” has nonetheless provoked a vigorous debate about the future of digital music, which Apple dominates with its iPod music-player and iTunes music-store. At issue is “digital rights management” (DRM)—the technology guarding downloaded music against theft. Since there is no common standard for DRM, it also has the side-effect that songs purchased for one type of music-player may not work on another. Apple’s DRM system, called FairPlay, is the most widespread. So it came as a surprise when Mr. Jobs called for DRM for digital music to be abolished.

  B.  This is a change of tack for Apple. It has come under fire from European regulators who claim that its refusal to license FairPlay to other firms has “locked in” customers. Since music from the iTunes store cannot be played on non-iPod music-players (at least not without a lot of fiddling), any iTunes buyer will be deterred from switching to a device made by a rival firm, such as Sony or Microsoft. When French lawmakers drafted a bill last year compelling Apple to open up FairPlay to rivals, the company warned of “state-sponsored piracy”. Only DRM, it implied, could keep the pirates at bay.

  C.  This week Mr. Jobs gave another explanation for his former defence of DRM: the record companies made him do it. They would make their music available to the iTunes store only if Apple agreed to protect it using DRM. They can still withdraw their catalogues if the DRM system is compromised. Apple cannot license FairPlay to others, says Mr Jobs, because it would depend on them to produce security fixes promptly. All DRM does is restrict consumer choice and provide a barrier to entry, says Mr Jobs; without it there would be far more stores and players, and far more innovation. So, he suggests, why not do away with DRM and sell music unprotected? “This is clearly the best alternative for consumers,” he declares, “and Apple would embrace it in a heartbeat.”

  D.  Why the sudden change of heart? Mr Jobs seems chiefly concerned with getting Europe’s regulators off his back. Rather than complaining to Apple about its use of DRM, he suggests, “those unhappy with the current situation should redirect their energies towards persuading the music companies to sell their music DRM-free.” Two and a half of the four big record companies, he helpfully points out, are European-owned. Mr Jobs also hopes to paint himself as a consumer champion. Apple resents accusations that it has become the Microsoft of digital music.

  E.  Apple can afford to embrace open competition in music players and online stores. Consumers would gravitate to the best player and the best store, and at the moment that still means Apple’s. Mr Jobs is evidently unfazed by rivals to the iPod. Since only 3% of the music in a typical iTunes library is protected, most of it can already be used on other players today, he notes. (And even the protected tracks can be burned onto a CD and then re-ripped.) So Apple’s dominance evidently depends far more on branding and ease of use than DRM-related “lock in”.

  F.  The music giants are trying DRM-free downloads. Lots of smaller labels already sell music that way. Having seen which way the wind is blowing, Mr Jobs now wants to be seen not as DRM’s defender, but as a consumer champion who helped in its downfall. Wouldn’t it lead to a surge in piracy? No, because most music is still sold unprotected on CDs, people wishing to steal music already can do so. Indeed, scrapping DRM would probably increase online-music sales by reducing confusion and incompatibility. With the leading online store, Apple would benefit most. Mr Jobs’s argument, in short, is transparently self-serving. It also happens to be right.

  Questions 1-7  Do the following statemets reflect the claims of the writer in Reading Passage 1?

  Write your answer in Boxes 1-7 on your answer sheet.

  TRUE if the statement reflets the claims of the writer

  FALSE if the statement contradicts the claims of the writer

  NOT GIVEN if it is impossbile to say what the writer thinks about this

  1. Apple enjoys a controlling position in digital music market with its iPod music-player and iTunes music-store.

  2. DRM is a government decree issued with a purpose to protect downloaded music from theft by consumers.

  3. Lack of standardization in DRM makes songs bought for one kind of music player may not function on another.

  4. Apple has been criticized by European regulators since it has refused to grant a license FairPlay to other firms.

  5. All music can be easily played on non-iPod music devices from Sony or Microsoft without too much fiddling.

  6. Apple depends far more on DRM rather than branding for its dominance of the digital music devices.

  7. If DRM was cancelled, Sony would certainly dominate the international digital music market.

  Questions 8-10  Choose the appropriate letters A-D and write them in boxes 8-10 on your answe sheet.

  8. Which of the following statements about Mr. Jobs’ idea of DRM is NOT TRUE?

  A. DRM places restrictions on consumer’ choice of digital music products available.

  B. DRM comples iTunes buyers to switch to a device made by Sony or Microsoft.

  C. DRM constitutes a barrier for potential consumers to enter digital music markets.

  D. DRM hinders development of more stores and players and technical innovation.

  9. The word “unfazed” in line 3 of paragraph E, means___________.

  A. refused

  B. welcomed

  C. not bothered

  D. not well received

  10. Which of the following statements is TRUE if DRM was scapped?

  A. Sony would gain the most profit.

  B. More customers would be “locked in”.

  C. A sudden increase in piracy would occur.

  D. Online-music sales would probably decrease.

  Selling Digital Music without Copy-protection Makes Sense

  A.  It was uncharacteristically low-key for the industry’s greatest showman. But the essay published this week by Steve Jobs, the boss of Apple, on his firm’s website under the unassuming title “Thoughts on Music” has nonetheless provoked a vigorous debate about the future of digital music, which Apple dominates with its iPod music-player and iTunes music-store. At issue is “digital rights management” (DRM)—the technology guarding downloaded music against theft. Since there is no common standard for DRM, it also has the side-effect that songs purchased for one type of music-player may not work on another. Apple’s DRM system, called FairPlay, is the most widespread. So it came as a surprise when Mr. Jobs called for DRM for digital music to be abolished.

  B.  This is a change of tack for Apple. It has come under fire from European regulators who claim that its refusal to license FairPlay to other firms has “locked in” customers. Since music from the iTunes store cannot be played on non-iPod music-players (at least not without a lot of fiddling), any iTunes buyer will be deterred from switching to a device made by a rival firm, such as Sony or Microsoft. When French lawmakers drafted a bill last year compelling Apple to open up FairPlay to rivals, the company warned of “state-sponsored piracy”. Only DRM, it implied, could keep the pirates at bay.

  C.  This week Mr. Jobs gave another explanation for his former defence of DRM: the record companies made him do it. They would make their music available to the iTunes store only if Apple agreed to protect it using DRM. They can still withdraw their catalogues if the DRM system is compromised. Apple cannot license FairPlay to others, says Mr Jobs, because it would depend on them to produce security fixes promptly. All DRM does is restrict consumer choice and provide a barrier to entry, says Mr Jobs; without it there would be far more stores and players, and far more innovation. So, he suggests, why not do away with DRM and sell music unprotected? “This is clearly the best alternative for consumers,” he declares, “and Apple would embrace it in a heartbeat.”

  D.  Why the sudden change of heart? Mr Jobs seems chiefly concerned with getting Europe’s regulators off his back. Rather than complaining to Apple about its use of DRM, he suggests, “those unhappy with the current situation should redirect their energies towards persuading the music companies to sell their music DRM-free.” Two and a half of the four big record companies, he helpfully points out, are European-owned. Mr Jobs also hopes to paint himself as a consumer champion. Apple resents accusations that it has become the Microsoft of digital music.

  E.  Apple can afford to embrace open competition in music players and online stores. Consumers would gravitate to the best player and the best store, and at the moment that still means Apple’s. Mr Jobs is evidently unfazed by rivals to the iPod. Since only 3% of the music in a typical iTunes library is protected, most of it can already be used on other players today, he notes. (And even the protected tracks can be burned onto a CD and then re-ripped.) So Apple’s dominance evidently depends far more on branding and ease of use than DRM-related “lock in”.

  F.  The music giants are trying DRM-free downloads. Lots of smaller labels already sell music that way. Having seen which way the wind is blowing, Mr Jobs now wants to be seen not as DRM’s defender, but as a consumer champion who helped in its downfall. Wouldn’t it lead to a surge in piracy? No, because most music is still sold unprotected on CDs, people wishing to steal music already can do so. Indeed, scrapping DRM would probably increase online-music sales by reducing confusion and incompatibility. With the leading online store, Apple would benefit most. Mr Jobs’s argument, in short, is transparently self-serving. It also happens to be right.

  Questions 1-7  Do the following statemets reflect the claims of the writer in Reading Passage 1?

  Write your answer in Boxes 1-7 on your answer sheet.

  TRUE if the statement reflets the claims of the writer

  FALSE if the statement contradicts the claims of the writer

  NOT GIVEN if it is impossbile to say what the writer thinks about this

  1. Apple enjoys a controlling position in digital music market with its iPod music-player and iTunes music-store.

  2. DRM is a government decree issued with a purpose to protect downloaded music from theft by consumers.

  3. Lack of standardization in DRM makes songs bought for one kind of music player may not function on another.

  4. Apple has been criticized by European regulators since it has refused to grant a license FairPlay to other firms.

  5. All music can be easily played on non-iPod music devices from Sony or Microsoft without too much fiddling.

  6. Apple depends far more on DRM rather than branding for its dominance of the digital music devices.

  7. If DRM was cancelled, Sony would certainly dominate the international digital music market.

  Questions 8-10  Choose the appropriate letters A-D and write them in boxes 8-10 on your answe sheet.

  8. Which of the following statements about Mr. Jobs’ idea of DRM is NOT TRUE?

  A. DRM places restrictions on consumer’ choice of digital music products available.

  B. DRM comples iTunes buyers to switch to a device made by Sony or Microsoft.

  C. DRM constitutes a barrier for potential consumers to enter digital music markets.

  D. DRM hinders development of more stores and players and technical innovation.

  9. The word “unfazed” in line 3 of paragraph E, means___________.

  A. refused

  B. welcomed

  C. not bothered

  D. not well received

  10. Which of the following statements is TRUE if DRM was scapped?

  A. Sony would gain the most profit.

  B. More customers would be “locked in”.

  C. A sudden increase in piracy would occur.

  D. Online-music sales would probably decrease.

信息流广告 网络推广 周易 易经 代理招生 二手车 网络营销 招生代理 旅游攻略 非物质文化遗产 查字典 精雕图 戏曲下载 抖音代运营 易学网 互联网资讯 成语 成语故事 诗词 工商注册 注册公司 抖音带货 云南旅游网 网络游戏 代理记账 短视频运营 在线题库 国学网 知识产权 抖音运营 雕龙客 雕塑 奇石 散文 自学教程 常用文书 河北生活网 好书推荐 游戏攻略 心理测试 石家庄人才网 考研真题 汉语知识 心理咨询 手游安卓版下载 兴趣爱好 网络知识 十大品牌排行榜 商标交易 单机游戏下载 短视频代运营 宝宝起名 范文网 电商设计 免费发布信息 服装服饰 律师咨询 搜救犬 Chat GPT中文版 经典范文 优质范文 工作总结 二手车估价 实用范文 爱采购代运营 古诗词 衡水人才网 石家庄点痣 养花 名酒回收 石家庄代理记账 女士发型 搜搜作文 石家庄人才网 铜雕 词典 围棋 chatGPT 读后感 玄机派 企业服务 法律咨询 chatGPT国内版 chatGPT官网 励志名言 河北代理记账公司 文玩 朋友圈文案 语料库 游戏推荐 男士发型 高考作文 PS修图 儿童文学 买车咨询 工作计划 礼品厂 舟舟培训 IT教程 手机游戏推荐排行榜 暖通,电采暖, 女性健康 苗木供应 主题模板 短视频培训 优秀个人博客 包装网 创业赚钱 养生 民间借贷律师 绿色软件 安卓手机游戏 手机软件下载 手机游戏下载 单机游戏大全 免费软件下载 网赚 手游下载 游戏盒子 职业培训 资格考试 成语大全 英语培训 艺术培训 少儿培训 苗木网 雕塑网 好玩的手机游戏推荐 汉语词典 中国机械网 美文欣赏 红楼梦 道德经 网站转让 鲜花 社区团购 社区电商
主站蜘蛛池模板: 欧美一级精品 | 激情综合婷婷 | 日本一区二区三区四区五区 | 欧美视频一二三区 | 激情综合婷婷 | 久久av资源 | 黄色片免费 | 亚洲欧美在线观看 | 波多野结衣亚洲一区 | 婷婷导航 | 成年免费视频黄网站在线观看 | 看片地址 | 一区二区三区四区精品 | 成人三级小说 | 91久久精品日日躁夜夜躁欧美 | www.久久爱 | 成年视频在线观看 | 亚洲免费看片 | 国产视频一区二区在线播放 | 日日夜夜天天 | 亚洲综合在线视频 | 亚洲福利网站 | 日韩黄色录像 | 国产精品久久久久久久久久久久久久久 | 免费理论片 | 亚洲69| 欧美黄色一级大片 | 精品在线播放 | 超碰91在线 | 黄色影音 | 国产视频99 | 91福利网站 | 91久久国产综合久久91精品网站 | a级片免费在线观看 | 成人在线不卡 | 拍床戏真做h文黄肉1v1 | 黄色伊人| 欲望岛av| 白浆在线| 三级在线观看 | 久久九九视频 | 久草视频免费看 | 韩国免费理论片 | 欧美日韩亚洲一区二区三区 | 伦一理一级一a一片 | 久久久久免费 | 少妇中文字幕 | 午夜网址 | 婷婷中文网 | 欧美成人午夜 | 国产精品久久久久久久久借妻 | 伊人精品视频 | 躁躁躁日日躁 | 日韩视频中文字幕 | 一区二区三区影院 | 天堂av网站 | 日韩精品一级毛片在线播放 | 欧美日本在线观看 | 黄网站免费大全入口 | 极品在线视频 | 丁香五香天堂网 | 狠狠做深爱婷婷久久综合一区 | www.日韩.com| 在线观看av的网站 | 欧美黄视频 | 婷婷久久五月 | 成人高潮片免费网站 | 欧美成人a | 亚洲精品久久久久久久久 | 五月婷综合 | 色妞综合网 | 国产高清av| 一级特黄毛片 | 黄色成人免费网站 | 99精品久久久久久 | 韩日欧美 | 免费的毛片 | 久久久精品一区 | 日本不卡视频在线观看 | 免费av播放 | 日韩中文字幕第一页 | 亚洲一区二区免费 | 欧美黑人一区二区三区 | 国产三级在线免费观看 | 99热播| 特级黄色大片 | 中文文字幕文字幕高清 | 亚洲精品一二区 | 亚洲国产成人精品女人久久久 | 国产精品久久久一区二区三区 | 欧美日本一区二区三区 | 国产三级视频在线播放 | www.日韩在线| 黄视频网站在线观看 | 久插视频 | www.久久久| 精品福利一区 | 在线不卡视频 | 丁香色婷婷 | 欧美视频在线播放 | 性高潮久久久久久久 | 国产精品96 | 福利视频二区 | 久久av片 | 日韩欧美在线视频 | 久久理论片 | 免费的黄色小视频 | 国产一区高清 | 草草免费视频 | 色综合久久久久 | 日韩国产一区二区 | 成人毛片在线播放 | 婷婷激情综合网 | 一区二区国产在线 | 激情视频网 | 国产日韩欧美日韩大片 | 亚洲乱码国产乱码精品精软件 | 色爱综合网 | 欧美美女视频 | 糖心vlog精品一区二区 | 国产乱码一区二区三区 | 特级丰满少妇一级aaaa爱毛片 | 欧美亚洲国产日韩 | 91丨九色丨蝌蚪丨丝袜 | 国产免费久久 | 中文字幕少妇 | 成人午夜在线 | 久久久久久久久久国产 | 中文字幕在线观看不卡 | 日韩在线播放视频 | 久久久精品一区二区 | 色综合天天综合网国产成人网 | 欧美mv日韩mv国产 | 午夜精品国产精品大乳美女 | 欧美爱爱网 | 天天色天天干天天 | av一二三区| 一级黄色录相 | 国产综合自拍 | 51成人网| 天天干天天色天天射 | 一区二区三区不卡视频 | 激情影院在线观看 | 91视频色 | 性大毛片视频 | 久久手机视频 | 日韩精品少妇 | 色婷婷久久久 | 国产精品一区在线观看 | 日韩理论在线观看 | 日韩一区二区三区在线播放 | 一区二区三区四区在线视频 | 韩国av免费 | 在线不欧美 | 日韩精品三区 | 日韩欧美色 | 亚洲欧美日韩在线 | 国产在线不卡 | 日韩精品在线免费观看 | 亚洲欧美一区二区三区在线 | 国产欧美视频在线观看 | 国产女人18毛片水18精品 | 欧美乱强伦 | 影音先锋中文字幕在线 | 国产精品免费看 | 日韩视频二区 | 香蕉看片 | 国产午夜视频 | 国产精品一区二区三区免费 | 国产肉体xxxx裸体784大胆 | 亚洲精品综合 | 免费成人深夜夜行网站 | 精品免费观看 | 国产精品原创 | 99精品在线| 成人羞羞国产免费 | 成人一区二区在线 | 国产h视频在线观看 | 天堂一区二区三区 | 久久久久97 | 在线免费黄色 | 黄色天天影视 | 精品在线免费视频 | av一区二区在线观看 | 午夜黄色大片 | 国产精品久久一区 | 国产亚洲欧美在线 | 国产成人午夜高潮毛片 | 日韩av在线免费看 | 国产黄视频在线观看 | 亚洲我射av| 一区二区在线免费观看 | 青青草在线观看视频 | 免费观看a级片 | 亚洲精品久久久 | 免费a在线观看 | 成人欧美激情 | 伊人久久精品 | 国产三级一区 | 欧美一级做性受免费大片免费 | 日韩精品一区二区三区免费视频 | 日日夜夜精品免费 | 欧美日韩黄色片 | 国产精品成人免费精品自在线观看 | 少妇一级淫免费观看 | 日韩av免费在线观看 | 天天操综合 | 一区二区三区在线观看视频 | 五月婷婷色综合 | a级片免费观看 | 羞羞的网站 | 深夜福利网址 | 日本va欧美va欧美va精品 | 色婷婷av一区二区三区之e本道 | 中文字幕网址在线 | 成人国产在线 | 亚洲精品一二三四 | 中文字幕在线网站 | 亚洲第一免费视频 | 欧美激情自拍 | 久久久久久爱 | 亚洲精品91 | 黄色伊人 | 欧美三级大片 | 日本黄色视 | 亚洲一区在线看 | 国产黄色av | 男女啪啪网站 | 黄色成人小视频 | 国产乱码久久久久久 | 欧美一级片在线 | 欧美性猛交99久久久久99按摩 | 99看片 | 国产精品一区二区av | 国产三级在线免费观看 | 麻豆国产91在线播放 | 国产视频在线观看视频 | 在线观看h片 | 欧美黑人性猛交 | 国产视频成人 | 欧美日在线 | 91精品国产综合久久久蜜臀九色 | 成人三级视频 | 日韩国产精品视频 | 精品久久视频 | www.粉色视频在线观看 | 长河落日电视连续剧免费观看 | 丁香婷婷激情 | 国产精品久免费的黄网站 | 一本久久道 | 精品免费国产 | 日本黄色三级视频 | 一级片在线观看视频 | 综合一区二区三区 | 亚洲高清在线观看 | 欧美国产日韩在线 | 日韩专区在线观看 | 99re在线观看 | 国产91在线看 | 成av人片一区二区三区久久 | 久久综合99 | 欧美日韩视频在线 | 国产伦精品一区二区 | 欧美在线一区二区三区 | 国产福利一区二区 | 欧美日韩国产一区二区 | 久精品视频 | 欧美视频免费在线观看 | 福利视频午夜 | 国产精品美女久久 | 欧美精品成人一区二区在线观看 | 亚洲精品成人网 | 日本在线一区二区三区 | av观看免费 | 在线观看黄网站 | 欧美日本国产 | 久久av一区二区三区亚洲 | 日韩毛片在线观看 | 中文字幕在线观看网址 | 激情网五月天 | 成人在线国产 | 成人黄色小视频 | 国产超碰在线 | 日本伊人网 | 国产乱人乱偷精品视频 | 超碰成人福利 | 国产午夜精品一区二区三区 | 青青草免费在线 | 就要干就要操 | 青草国产 | 国产一区精品视频 | 日本成人精品 | 国产激情小说 | 丁香综合网 | 成 人 黄 色 片 在线播放 | 欧美国产日韩在线 | 亚洲三级在线播放 | 日韩精品免费在线观看 | 五月天久久久 | 国产精品伦理一区 | av青青草原| 亚洲男人在线 | 久久九九国产 | 一区二区三区四区在线播放 | 一区二区精品 | 911亚洲精品 | 久久精品国产精品 | 日韩少妇av | 中文字幕在线不卡 | 欧美不卡在线观看 | 欧美成人三级在线观看 | 日韩精品观看 | 免费a在线 | 日韩成人免费视频 | 黄色av免费看 | 亚洲第一伊人 | 欧美手机在线 | 激情综合网五月 | 中文字幕免费av | 免费a在线| 色网站在线观看 | 久久久久久久久国产精品 | a视频在线观看 | 亚洲第一毛片 | 色综合视频在线观看 | av免费看网站 | 免费黄色一级片 | 亚洲成人黄色 | 福利在线观看 | 精品国产一区二区在线观看 | 四虎看片| 超碰人人在线 | 成人免费毛片男人用品 | 草草视频在线 | 亚洲一区在线视频 | 一区二区不卡视频 | 久久成人av | 四虎影院在线 | 色婷婷一区 | 久久少妇 | 亚洲人在线| 五月天婷婷综合 | 亚洲精品免费在线 | 三上悠亚激情av一区二区三区 | 日本欧美久久久久免费播放网 | 六月丁香激情 | 麻豆91在线 | 日韩黄色一级 | 精品一区二区三区免费 | 免费毛片网站 | 高清视频一区二区 | 日日日操操操 | 国产一及片 | 欧美激情视频一区二区三区 | 久久xxxx| 国产日韩欧美精品 | 九九九久久久 | 中文字幕97 | 伊人久久影院 | 国产一级免费观看 | 久久久精品一区二区 | 日韩欧美在线播放 | 欧洲精品一区二区 | 国产三级在线观看视频 | 日韩欧美黄色片 | 日韩成人精品 | 波多野结衣亚洲一区 | 亚洲一区二区国产精品 | 一级毛片黄色 | 可以看毛片的网站 | 91日韩在线 | 亚洲精品一区二三区 | 成人黄色在线 | av福利在线| 色综合天天综合网国产成人网 | 成人高清在线 | 亚洲成人免费在线观看 | 国产精品一品二区三区的使用体验 | 欧美福利在线观看 | 天天干天天看 | 成人午夜在线视频 | av在线免费观看网站 | 欧美极品视频 | 国产精品2区 | 欧美亚洲国产精品 | 伦一理一级一a一片 | 久热在线视频 | 欧美日韩一二三区 | 久久久精品国产sm调教网站 | 中文字幕免费视频 | 日韩一区不卡 | 精品国产欧美一区二区三区成人 | 国产做受入口竹菊 | 国产一区二区网站 | 国产中文在线 | 色综合色综合 | 毛片毛片毛片 | 国产黄色精品 | 日韩在线专区 | 亚洲精品乱码久久久久久动漫 | 欧美视频在线观看一区 | 欧美黄色片在线观看 | 欧美日韩成人 | 小镇姑娘国语版在线观看免费 | 少妇视频在线观看 | 国产寡妇亲子伦一区二区三区四区 | 亚洲一区二区免费视频 | 精品一区二区三区免费看 | 国产精品一区av | 一级理论片 | 黄色成年人视频 | 欧美激情视频一区 | 天天干女人 | 91视频在线观看 | 日日夜夜天天干 | 福利在线| 欧美在线视频一区 | 亚洲一区二区三区在线播放 | 91久色| 欧美一区二区三区免费 | 激情五月综合色婷婷一区二区 | 伊人干综合 | 精品在线观看视频 | 黄色大片网站 | 黄色av免费观看 | 四虎视频 | 日韩在线小视频 | 免费国产精品视频 | 91亚洲国产成人久久精品麻豆 | 日韩精品在线观看视频 | 99热在线免费观看 | 日韩免费高清 | www.成人在线 | 91视频18 | 日韩欧美高清 | 国产精品日韩在线 | 国产精品主播一区二区 | 国产成人99久久亚洲综合精品 | 黄在线观看 | 久在线观看 | 欧美日韩精品 | 天天草天天干 | 香蕉视频久久 | 久草福利在线观看 | 亚洲欧美日韩一区 | 国产精品高清在线观看 | 一区二区三区四区视频在线观看 | 国产三级在线观看视频 | 亚洲免费观看视频 | 免费观看全黄做爰大片视频美国 | 国产日韩综合 | 国产在线麻豆精品观看 | 日韩av网站在线观看 | 欧美激情一区二区三区 | 成人永久免费视频 | 一区二区三区国产精品 | 日韩三级一区二区 | 欧美深夜福利 | 亚洲播放 | 男女啪啪免费网站 | 精品视频在线免费 | 久久精品免费看 | 欧美一二区 | 一级黄色网| 色午夜| 国产色网站 | 久久久精| 99伊人 | 三级在线免费观看 | 午夜精品久久久久久 | 99视频免费在线观看 | 国产伦精品一区二区免费 | 毛片在线视频 | 一区在线观看 | 国产超碰在线 | 国产特级黄色片 | av网址在线播放 | 玖玖色资源 | 成人免费视频网址 | 久久毛片视频 | 欧美视频亚洲视频 | 黄色国产| 欧美精品日韩少妇 | 一级特黄aaaaaa大片 | 欧美在线视频一区二区 | 高清免费av | 国产片一区二区 | 久久精品福利 | 99这里有精品 | 一级二级片 | 国产精品国产精品国产专区不片 | 久久久不卡 | 成人午夜在线 | 欧美精品自拍 | av基地网| 日韩精品视频免费在线观看 | 国产一区视频在线 | 成人三级视频在线观看 | 国产黄色精品 | 国产日韩精品视频 | 欧美一级淫片bbb一84 | 国产成人精品一区二区三区四区 | www.日韩.com | 色婷婷免费视频 | 精品国产久| 日韩激情一区二区 | av高清在线观看 | 激情另类小说 | 日本不卡在线播放 | 天天插天天爽 | 久久久久综合 | 免费成人毛片 | 日本免费黄色网址 | 国产成人在线观看免费网站 | 日韩视频在线观看 | 少妇一级淫片免费观看 | 久久久久久久国产精品 | 久久手机免费视频 | 日本一级大片 | 亚洲精品综合 | 精品少妇v888av | 日韩特级片 | 波多野结衣乳巨码无在线观看 | 中文字幕播放 | 日韩中文字幕一区二区 | 中文字幕在线观看网站 | 全部免费毛片在线播放高潮 | 俺去俺来也在线www色官网 | 成人一区二区视频 | 亚洲精品久久久久 | 激情久久av | 日韩精品久久久久久久酒店 | 日韩精品一级 | 中文字幕在线看 | 欧美成人精品一区二区三区在线看 | 亚洲一级二级三级 | 亚洲一区三区 | 福利影院在线观看 | 激情五月综合网 | 日本公妇乱偷中文字幕 | 五月天激情国产综合婷婷婷 | 久久精品视频一区二区 | 超碰97在线免费观看 | 亚洲自拍偷拍一区 | 欧美在线视频一区 | 黄色一级大片在线免费看产 | 日韩香蕉视频 | 欧美日韩成人一区二区 | 精品一区在线播放 | 欧美一级做性受免费大片免费 | 日韩成人在线免费观看 | 久久精品一区二区三区不卡牛牛 | 日韩精品在线看 | 一区二区在线免费观看 | 精品成人在线 | 欧美视频在线一区 | 国产高清av | 国产一区二区三区视频在线 | 国产欧美一区二区精品性色超碰 | 国产日韩视频 | 日本丰满少妇做爰爽爽 | 蜜桃视频一区二区 | 国产成人精品网站 | 欧美一区视频 | 亚洲69视频 | 日韩欧美国产综合 | 国产三级黄色片 | brazzers精品成人一区 | 毛片网站免费观看 | 日韩资源在线 | 九色自拍 | 久久久影院| 亚洲欧美日韩综合 | 六月婷婷在线 | 天堂在线中文资源 | 蜜桃91丨九色丨蝌蚪91桃色 | 欧美精品亚洲精品 | 久草手机在线视频 | 国产成年人视频 | 中文字幕在线免费视频 | 国产乱国产乱300精品 | 日韩福利在线观看 | 国产精品自拍小视频 | 国产美女在线播放 | 免费91网站 | 97精品在线视频 | 日韩一区二区三区四区 | 国产伦精品一区二区三区视频网站 | 久久av资源 | 成人精品视频 | 久久精品久久久久久久 | 精品久久国产 | 日本精品网站 | 国产精品免费一区二区三区 | 在线观看国产免费视频 | 欧美日韩国产成人 | 日本丰满少妇做爰爽爽 | 福利视频免费 | 国产精品美女久久久久久久久 | 一本色道久久综合亚洲精品酒店 | 黄色直接看 | 天堂在线中文资源 | 亚洲乱码在线观看 | 伊人成人在线视频 | 中文字幕一区二区在线播放 | 成人免费福利视频 | 好吊日视频 | 97人人草| 国产女人水真多18毛片18精品 | 欧美一二三 | av在线播放观看 | 国产一区二区免费在线观看 | 亚洲欧洲综合 | www久 | 欧美成人激情视频 |