用英文介绍恐龙有英文还要翻译_百度作业帮
用英文介绍恐龙有英文还要翻译
有英文还要翻译
Dinosaurs (Greek:δεινόσαυρος,deinosauros) were the dominant terrestrial vertebrate animals for over 160 million years,from the late Triassic period,about 230 million years ago (Ma),until the end of the Cretaceous period,about 65 Ma,when most of them became extinct in the Cretaceous–Tertiary extinction event.The fossil record indicates that birds evolved from theropod dinosaurs during the Jurassic period,and most paleontologists regard them as the only clade of dinosaurs to have survived until the present day.Dinosaurs were a varied group of animals.Paleontologists have identified over 500 distinct genera and more than 1,000 different species of dinosaur,and remains have been found on every continent on Earth.Some dinosaurs were herbivorous,others carnivorous.Some were bipedal,others quadrupedal,and others were able to shift between these body postures.Many species developed elaborate skeletal modifications such as bony armor,horns or crests.Although generally known for their large size,many dinosaurs were human-sized or even smaller.Most major groups of dinosaurs are known to have built nests and laid eggs,suggesting an oviparity similar to that of modern birds.The term "dinosaur" was coined in 1842 by Sir Richard Owen and derives from Greek δεινός (deinos) "terrible,powerful,wondrous" + σαῦρος (sauros) "lizard".Through the first half of the 20th century,most of the scientific community believed dinosaurs to have been sluggish,unintelligent cold-blooded animals.Most research conducted since the 1970s,however,has supported what has since become the scientific consensus view:that dinosaurs were active animals with elevated metabolisms and numerous adaptations for social interaction.Since the first dinosaur fossils were recognized in the early nineteenth century,mounted dinosaur skeletons have become major attractions at museums around the world.Dinosaurs have become a part of world culture and remain consistently popular.They have been featured in best-selling books and films such as Jurassic Park,and new discoveries are regularly covered by the media.As a result,the word "dinosaur" has entered the common vernacular,although its use and meaning in colloquial speech may be inconsistent with modern science.In English,for example,"dinosaur" is commonly used to describe anything that is impractically large,slow-moving,obsolete,or bound for extinction.
dinosaur is beautiful, but we only call unlovely girls dinasaur
dinosaur is beautiful, but we only call unlovely girls dinasaur.
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中文名:&操作系统概念 （操作系统恐龙书）英文名:&Operating System Concepts别名:&操作系统恐龙书版本:&英文第七版原版 [PDF] 地区:&对白语言:&简介:&
有名的恐龙书，经典之作。本书为第七版的英文原版。 本书讨论了操作系统中的基本概念和算法，并对大量实例(如Linux系统)进行了研究。全书内容共分七部分。第一部分概要解释了操作系统是什么、做什么、是怎样设计与构造的，也解释了操作系统概念是如何发展起来的，操作系统的公共特性是什么。第二部分进程管理描述了作为现代操作系统核心的进程以及并发的概念。第三部分存储管理描述了存储管理的经典结构与算法以及不同的存储管理方案。第四部分I／O系统对I／O进行了深入的讨论，包括I／O系统设计、接口、内部结构与功能等。第五部分分布式系统介绍了分布式系统的一般结构以及连接它们的网络，讨论了分布存取策略、分布式文件系统及分布式系统中同步、通信等机制。第六部分保护与安全介绍了操作系统中对文件、内存、CPU及其他资源进行操作的安全与保护机制。第七部分案例研究，分析与讨论了Linux系统、Windows 2000、WindowsXP、FreeBSD、Mach及Nachos等实例。 Operating System Concepts 7/e, the best-selling introductory text in the market, continues to evolve with emerging course needs and to provide a solid theoretical foundation for understanding operating systems.
The seventh edition has been updated to offer coverage of the most current topics and applications, improved conceptual coverage and additional content to bridge the gap between concepts and actual implementations. The new two-color design allows for easier navigation and supports student motivation. New exercises, lab projects and review questions help to further reinforce important concepts. Wiley Plus, including a test bank, self-check exercises, and a student solutions manual, is now part of the comprehensive support package.
New Adaptations* Increased coverage of user perspective in Chapter 1.* Increased coverage of OS design throughout.* A new chapter on real-time and embedded systems (Chapter 19).* A new chapter on multimedia (Chapter 20).* Additional coverage of security and protection.* Additional coverage of distributed programming.* New exercises at the end of each chapter.* New programming exercises and projects at the end of each chapter.* New student-focused pedagogy and a new two-color design to enhance the learning 以下是目录：PART ONE OVERVIEWChapter 1 Introduction1.1 What Operating Systems Do 31.2 Computer-System Organization 61.3 Computer-System Architecture 121.4 Operating-System Structure 151.5 Operating-System Operations 171.6 Process Management 201.7 Memory Management 211.8 Storage Management 221.9 Protection and Security 261.10 Distributed Systems 281.11 Special-Purpose Systems 291.12 Computing Environments 311.13 Summary 34Exercises 36Bibliographical Notes 38Chapter 2 Operating-System Structures2.1 Operating-System Services 392.2 User Operating-System Interface 412.3 System Calls 432.4 Types of System Calls 472.5 System Programs 552.6 Operating-System Design andImplementation 562.7 Operating-System Structure 582.8 Virtual Machines 642.9 Java 672.10 Operating-System Generation 732.11 System Boot 742.12 Summary 75Exercises 76Bibliographical Notes 81PART TWO PROCESS MANAGEMENTChapter 3 Processes3.1 Process Concept 853.2 Process Scheduling 893.3 Operations on Processes 943.4 Interprocess Communication 1013.5 Examples of IPC Systems 1103.6 Communication in Client-Server Systems 1133.7 Summary 124Exercises 125Bibliographical Notes 130xviixviii ContentsChapter 4 Threads4.1 Overview 1334.2 Multithreading Models 1354.3 Thread Libraries 1374.4 Java Threads 1404.5 Threading Issues 1474.6 Operating-System Examples 1564.7 Summary 159Exercises 159Bibliographical Notes 165Chapter 5 CPU Scheduling5.1 Basic Concepts 1675.2 Scheduling Criteria 1715.3 Scheduling Algorithms 1725.4 Multiple-Processor Scheduling 1835.5 Thread Scheduling 1865.6 Operating System Examples 1875.7 Java Scheduling 1955.8 Algorithm Evaluation 1995.9 Summary 203Exercises 204Bibliographical Notes 207Chapter 6 Process Synchronization6.1 Background 2096.2 The Critical-Section Problem 2116.3 Peterson’s Solution 2136.4 Synchronization Hardware 2146.5 Semaphores 2176.6 Classic Problems ofSynchronization 2226.7 Monitors 2316.8 Java Synchronization 2366.9 Synchronization Examples 2506.10 Atomic Transactions 2556.11 Summary 263Exercises 264Bibliographical Notes 271Chapter 7 Deadlocks7.1 System Model 2737.2 Deadlock Characterization 2757.3 Methods for Handling Deadlocks 2807.4 Deadlock Prevention 2847.5 Deadlock Avoidance 2877.6 Deadlock Detection 2937.7 Recovery from Deadlock 2967.8 Summary 298Exercises 299Bibliographical Notes 303PART THREE MEMORY MANAGEMENTChapter 8 Main Memory8.1 Background 3078.2 Swapping 3148.3 Contiguous Memory Allocation 3168.4 Paging 3208.5 Structure of the Page Table 3298.6 Segmentation 3348.7 Example: The Intel Pentium 3378.8 Summary 341Exercises 342Bibliographical Notes 344Contents xixChapter 9 VirtualMemory9.1 Background 3479.2 Demand Paging 3519.3 Copy-on-Write 3579.4 Page Replacement 3599.5 Allocation of Frames 3729.6 Thrashing 3759.7 Memory-Mapped Files 3799.8 Allocating Kernel Memory 3849.9 Other Considerations 3879.10 Operating-System Examples 3939.11 Summary 396Exercises 397Bibliographical Notes 401PART FOUR STORAGE MANAGEMENTChapter 10 File-System Interface10.1 The Concept of a File 40510.2 Access Methods 41310.3 Directory Structure 41710.4 File-System Mounting 42710.5 File Sharing 42910.6 Protection 43410.7 Summary 439Exercises 440Bibliographical Notes 441Chapter 11 File-System Implementation11.1 File-System Structure 44311.2 File-System Implementation 44511.3 Directory Implementation 45111.4 Allocation Methods 45311.5 Free-Space Management 46111.6 Efficiency and Performance 46311.7 Recovery 46711.8 Log-Structured File Systems 46911.9 NFS 47011.10 Example: The WAFL File System 47611.11 Summary 478Exercises 479Bibliographical Notes 487Chapter 12 Mass-Storage Structure12.1 Overview of Mass-StorageStructure 48912.2 Disk Structure 49212.3 Disk Attachment 49312.4 Disk Scheduling 49412.5 Disk Management 50012.6 Swap-Space Management 50412.7 RAID Structure 50612.8 Stable-Storage Implementation 51512.9 Tertiary-Storage Structure 51612.10 Summary 526Exercises 527Bibliographical Notes 533Chapter 13 I/O Systems13.1 Overview 53513.2 I/O Hardware 53613.3 Application I/O Interface 54513.4 Kernel I/O Subsystem 55113.5 Transforming I/O Requests toHardware Operations 55813.6 STREAMS 56013.7 Performance 56213.8 Summary 565Exercises 566Bibliographical Notes 567xx ContentsPART FIVE PROTECTION AND SECURITYChapter 14 Protection14.1 Goals of Protection 57114.2 Principles of Protection 57214.3 Domain of Protection 57314.4 Access Matrix 57814.5 Implementation of Access Matrix 58214.6 Access Control 58514.7 Revocation of Access Rights 58614.8 Capability-Based Systems 58714.9 Language-Based Protection 59014.10 Summary 595Exercises 596Bibliographical Notes 597Chapter 15 Security15.1 The Security Problem 59915.2 Program Threats 60315.3 System and Network Threats 61115.4 Cryptography as a Security Tool 61715.5 User Authentication 62815.6 Implementing Security Defenses 63215.7 Firewalling to Protect Systems andNetworks 63915.8 Computer-SecurityClassifications 64115.9 An Example: Windows XP 64215.10 Summary 644Exercises 645Bibliographical Notes 646PART SIX DISTRIBUTED SYSTEMSChapter 16 Distributed System Structures16.1 Motivation 65116.2 Types of Network- basedOperating Systems 65316.3 Network Structure 65716.4 Network Topology 66016.5 Communication Structure 66216.6 Communication Protocols 66816.7 Robustness 67116.8 Design Issues 67316.9 An Example: Networking 67616.10 Summary 677Exercises 678Bibliographical Notes 684Chapter 17 Distributed File Systems17.1 Background 68517.2 Naming and Transparency 68717.3 Remote File Access 69017.4 Stateful Versus Stateless Service 69517.5 File Replication 69617.6 An Example: AFS 69817.7 Summary 703Exercises 704Bibliographical Notes 705Chapter 18 Distributed Coordination18.1 Event Ordering 70718.2 Mutual Exclusion 71018.3 Atomicity 71318.4 Concurrency Control 71618.5 Deadlock Handling 72018.6 Election Algorithms 72718.7 Reaching Agreement 73018.8 Summary 732Exercises 733Bibliographical Notes 734Contents xxiPART SEVEN SPECIAL -PURPOSE SYSTEMSChapter 19 Real-Time Systems19.1 Overview 73919.2 System Characteristics 74019.3 Features of Real-Time Kernels 74219.4 Implementing Real-Time OperatingSystems 74419.5 Real-Time CPU Scheduling 74819.6 VxWorks 5.x 75419.7 Summary 756Exercises 757Bibliographical Notes 757Chapter 20 Multimedia Systems20.1 What Is Multimedia? 75920.2 Compression 76220.3 Requirements of MultimediaKernels 76420.4 CPU Scheduling 76620.5 Disk Scheduling 76720.6 Network Management 76920.7 An Example: CineBlitz 77220.8 Summary 774Exercises 775Bibliographical Notes 777PART EIGHT CASE STUDIESChapter 21 The Linux System21.1 Linux History 78121.2 Design Principles 78621.3 Kernel Modules 78921.4 Process Management 79221.5 Scheduling 79521.6 Memory Management 80021.7 File Systems 80821.8 Input and Output 81421.9 Interprocess Communication 81721.10 Network Structure 81821.11 Security 82121.12 Summary 823Exercises 824Bibliographical Notes 825Chapter 22 Windows XP22.1 History 82722.2 Design Principles 82922.3 System Components 83122.4 Environmental Subsystems 85522.5 File System 85822.6 Networking 86622.7 Programmer Interface 87322.8 Summary 880Exercises 880Bibliographical Notes 881Chapter 23 Influential Operating Systems23.1 Early Systems 88323.2 Atlas 88923.3 XDS-940 89023.4 THE 89123.5 RC 23.6 CTSS 89323.7 MULTICS 89323.8 IBM OS/360 89423.9 Mach 89523.10 Other Systems 897Exercises 897xxii ContentsPART EIGHT APPENDICESAppendix A BSD UNIX (contents online)A.1 UNIX History 899A.2 Design Principles 904A.3 Programmer Interface 906A.4 User Interface 913A.5 Process Management 916A.6 Memory Management 920A.7 File System 922A.8 I/O System 930A.9 Interprocess Communication 933A.10 Summary 938Exercises 939Bibliographical Notes 940Appendix B TheMach System (contents online)B.1 History of the Mach System 941B.2 Design Principles 943B.3 System Components 944B.4 Process Management 947B.5 Interprocess Communication 953B.6 Memory Management 958B.7 Programmer Interface 963B.8 Summary 964Exercises 965Bibliographical Notes 966Credits 967Appendix C Windows 2000 (contents online)C.1 History 969C.2 Design Principles 970C.3 System Components 971C.4 Environmental Subsystems 987C.5 File System 989C.6 Networking 996C.7 Programmer Interface 1001C.8 Summary 1008Exercises 1008Bibliographical Notes 1009Appendix D Distributed Communication (contents online)D.1 Sockets 1011D.2 UDP Sockets 1018D.3 Remote Method Invocation 1022D.4 Other Aspects of DistributedCommunication 1027D.5 Web Services 1029D.6 Summary 1033Exercises 1034Bibliographical Notes 1035Appendix E Java Primer (contents online)E.1 Basics 1037E.2 Inheritance 1046E.3 Interfaces and Abstract Classes 1048E.4 Exception Handling 1052E.5 Applications and Applets 1053E.6 Summary 1055Bibliographical Notes 1055Bibliography 899Credits 929Index 929[已通过安全测试][杀毒软件]：Symantec AntiVirus [杀毒引擎版本]： 10.0.2.2000[病毒库]：[共享服务器]：DonkeyseverNo.2[共享时间]:不定时，一般在白天[已通过安装测试]WindowsXP SP2[免责声明]该下载内容仅限于个人测试学习之用，不得用于商业用途，并且请在下载后24小时内删除。版权归原作者所有，如果你喜欢，请购买正版。
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留点口水(可选)：最后的恐龙 英文版The Last Dinosaurs
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《最后的恐龙（The Last Dinosaurs）》这是一款非常有趣的射击闯关小游戏，恐龙世界即将灭亡，最后的希望就寄托在躲在下水道里的小恐龙身上，可是他的好朋友被黑暗势力抓走了。恐龙部落能否获得新生，就看小恐龙能否救出他的同伴了。让我们跟着小恐龙一起战斗吧！不知道会不会在下水道里遇见忍者神龟哦！
大家印象中的恐龙可能都是那种张着血盆大口横冲直撞的庞然大物，但是《最后的恐龙（The Last Dinosaurs）》这款游戏中的恐龙虽然也保留着恐龙的长相，但是那胖乎乎的身材，还有拿着手枪消灭敌人的傲娇样子却怎么看怎么可爱。随着不断地闯关，你遇到的小伙伴们也会越来越多，可以解锁的武器也越来越多，当然这些都是需要用金币去购买的。这款游戏的音乐也很不错，喜欢射击类小游戏的朋友们可以来挑战一下。
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&　　1.背口诀记单词　　请张开palm （手掌）　　要保持calm （镇静）　　这只是film （电影）　　赚钱的是他们firm （公司）　　2.识音标，记单词　　palm n.手掌，棕榈； vt.与……握手，藏……于掌中，蒙混。　　calm adj.（天气、海洋等）静的，平静的，镇静的，沉着的；v.（使）平静，（使）镇定，平息；[习语]calm before the storm（暴风雨前的平静）。　　film n.薄膜，膜层，胶卷，影片，薄雾，电影；vt.在……上覆以薄膜，拍成电影，vi.生薄膜，变成朦胧，拍电影。　　firm n.公司adj.结实的，坚硬的，坚定的，牢固的，稳固的，严格的；vt.使牢固，使坚定；vi.变稳固，变坚实；adv.稳固地，坚定地。　　3.邻里邻外　　clam――在clam后加ly变为：calmly adv.平静地，安静地，冷静地　　film――在film后加fest变为：filmfest n.电影节　　4.佳句背诵　　They can't palm off that tale on us.　　他们那套话骗不了我们。　　I know him like the palm of my hand.　　我对他了如指掌。　　After a storm comes a calm.　　暴风雨后天平静；雨过天晴。　　Vows made in storms are forgotten in calms.　　激动时的誓约，平静时便忘却。　　The calmest husbands make the stormiest wives.　　有懦弱的丈夫，就有凶悍的妻子。　　The girl films well.　　这女孩很上照。　　Love asks faith& and faith asks firmness.　　爱情要求信任，信任要求坚定。
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