民航飞行员等级划分ATA章节划分中第44章节是什么?

1Chapter 1 ATA (Air Transport Association of America) 规范1. 何谓 ATA (Air Transport Association of America) 规范?ATA 规范是为了要制造业使用共同的系统与程序而达到降低成本的目的?ATA 规范扮演的 角色是促进这样程序带给制造业者一致共同支持与执行。因此,ATA 规范是对于资料传递, 处理业务,执行操作,或是坚守付诸实行之自发性产业协议。 ATA 规范适用于商用航空工业以符合其严格的飞安及可靠性需求并且持续推动,以利任何时 间有新科技的引进。 Manufacturers Technical Data Through Revision 33 of January 15, 1995 Ground Equipment Technical Data Revision 5 of October 1986 Computer Software Manual Revision of April 1983 Standard for Jet Fuel Quality Control at Airports Revision 4 of June 1991 Guidelines for Aircraft Maintenance Training Revision 1 of October 1991 Guidelines for Training and Qualifying Personnel in Non-Destructive Testing Methods Revision 4 of September 1993 Sources and Approved Parts Qualification Guidelines (1993) Integrated Data Processing Supply Revision 24 of June 1985 Packaging of Airline Supplies Revision 17 of January 1988 Integrated Data Processing Materials Management (Main Document) Second Edition---Revision 3 Integrated Data Processing Materials Management (Main Dictionary) Second Edition---Revision 3 Directory Revision 7 of July 1994ATA Spec 100 ATA Spec 101 ATA Spec 102 ATA Spec 103 ATA Spec 104ATA Spec 105 ATA Spec 106 ATA Spec 200 ATA Spec 300 ATA Spec 2000 ATA Spec 2000 ATA Spec 2000 2ATA Spec 2000Data Base Services The ATA offers the following three data base services to assist the industry in souring spare parts and repair services. 1. Central Procurement Data Base 2. Airline Inventory Redistribution System 3. Repair Data Base ATA Spec 2100: Digital Data Standards for Aircraft Support Revision 1 of April 1995 Digital Data Standards for Aircraft Support (Chapter 2---Data Model) Revision 0 of April 1995ATA Spec 2100何谓 ATA 100 规范? 这个规范是建立针对飞机,发动机,附件制造业对于其产品呈现出数据的标准,这些标准实 际上是推荐性的,而且这些标准可以并入制造业与使用者购买合约内成为强制执行的文件。 以下表列为技术文件内识别章节及次要章节分类。 Aircraft General Sys/Chap 5 -00 -10 -20 -30 -40 -50 6 7 -00 -10 -20 8 -00 -10 -20 9 -00 Sub-sys/sec Time Limits/maintenance General Time Limits Scheduled Maintenance Checks Reserved Reserved Unscheduled Maintenance Check Dimensions and Areas Lifting & Shoring General Jacking Shoring Leveling & Weighing General Weighing and Balancing Leveling Towing & Taxiing General Title 3Sys/ChapSub-sys/sec -10 -20 Towing TaxiingTitle10 -00 -10 -20 -30 12 -00 -10 -20 -30 18 -00 -10 -20 Aircraft Systems Sys/Chap 20 -20 ~ -90 21 -00 -10 -20 -30 -40 -50 -60 22 -00 -10 -20 -30 23 -00 -10 Sub-sys/secParking, Mooring, Storage & Return to service General Parking/Storage Mooring Return to service Servicing General Replenishing Scheduled Servicing Unscheduled Service Time Limits/maintenance General Vibration Analysis Noise AnalysisTitle Standard Practices-Aircraft Reserved ECS General Compression Distribution Pressurization Control Heating Cooling Temperature Control Auto Flight General Auto pilot Speed-Attitude Correction Auto Throttle Communications General Speech Communication 4Sys/ChapSub-sys/sec -15 -20 -30 -40 -50 -60 -70 -80 SATCOMTitle Data Transmission and Automatic Calling Passenger Address, Entertainment and Comfort Interphone Audio Integrating Static Discharging Audio & Video Monitoring Integrated Automatic Tuning Electrical power General Generator Drive AC Generation DC Generation External Power AC Electrical Load Distribution DC Electrical Load Distribution Equipment/Furnishings General Flight Compartment Passenger Compartment Buffet/Galley Lavatories Fire Protection General Detection Extinguishing Explosion Suppression Flight Controls General Aileron & Tab Rudder & Tab Elevator & Tab Horizontal Stabilizer Flaps Spoiler, Drag Devices and Variable Aerodynamic Fairings Gust Lock & Dampener Lift Augmenting Fuel24 -00 -10 -20 -30 -40 -50 -60 25 -00 -10 -20 -30 -40 26 -00 -10 -20 -30 27 -00 -10 -20 -30 -40 -50 -60 -70 -80 28 5Sys/ChapSub-sys/sec -00 -10 -20 -30 -40 General Storage Distribution Dump Indicating Hydraulic Power -00 -10 -20 -30 General Main Auxiliary Indicating Ice and Rain Protection -00 -10 -20 -30 -40 -50 -60 -70 -80 General Airfoil Air Intakes Pitot and StaticTitle2930Windows, Windshields and doors Antennas and Radomes Propellers/Rotors Water Lines Detection Indicating/Recording Systems General Instrument & Control Panels Independent Instruments Recorders Central Computers Central Warning Systems Central Display Systems Automatic Data Reporting Systems Landing Gear General Main Gear and Doors Nose Gear and Doors Extension and Retraction Wheels and Brakes Steering Position and Warning Supplementary Gear31 -00 -10 -20 -30 -40 -50 -60 -70 32 -00 -10 -20 -30 -40 -50 -60 -70 6Sys/Chap 33Sub-sys/sec Lights -00 -10 -20 -30 -40 -50 General Flight Compartment Passenger CompartmentTitleCargo and Service Compartments Exterior Emergency Lighting Navigation General Flight Environment Data Attitude & Direction Landing and Taxiing Aids Independent Position Determining Dependent Position Determining Flight Management Computer Oxygen General Crew Passenger Portable Pneumatic General Distribution Indicating Vacuum General Distribution Indicating Water/Waste General Potable Wash Waste Disposal Air Supply Water Ballast General Storage Dump34 -00 -10 -20 -30 -40 -50 -60 35 -00 -10 -20 -30 36 -00 -10 -20 37 -00 -10 -20 38 -00 -10 -20 -30 -40 41 -00 -10 -20 7Sys/Chap 45Sub-sys/sec -30 -00 -5 ~ -19 -20 ~ -49 -45 -50 ~ -59 -60 ~ -69 -70 ~ 89 IndicatingTitle Central Maintenance System (CMS) General CMS/Aircraft General CMS/Aircraft Systems Central Maintenance System CMS/Structures CMS/Propellers CMS/Power Plane Information Systems General Airplane General Information Systems Flight Deck Information Systems Maintenance Information Systems Passenger Cabin Information Systems Miscellaneous Airborne Auxiliary Power General Power Plane Engine Engine Fuel and Control Ignition/Starting Air Engine Control Indicating Exhaust Oil46 -00 -10 -20 -30 -40 -50 49 -00 -10 -20 -30 -40 -50 -60 -70 -80 -90 Structure Sys/Chap Sub-sys/sec 51 -00 -10 -20 -30 -40 -50Title Standard Practices and Structures-General Landing Gear General Investigation, Cleanup and Aerodynamic Smoothness Processes Materials Fasteners Support of Airplane for Repair and Alignment Check Procedures 8Sys/Chap Sub-sys/sec -60 -70 -80 52 -00 -10 -20 -30 -40 -50 -60 -70 -80 53 -00 -10 ~ C90 54 -00 -10 ~ -40 -50 ~ -80 55 -00 -10 -20 -30 -40 56 -00 -10 -20 -30 -40 57 -00 -10 -20 -30 -40 Control-Surface Balancing Repairs Electrical Bonding Doors General Passenger/Crew Emergency Exit Cargo Service Fixed Interior Entrance Stairs Door Warning Landing Gear Fuselage General Fuselage Sections Nacelles/Pylons General Nacelle Section Pylon Stabilizers General Horizontal Stabilizer or Canard Elevator Vertical Stabilizer Rudder Windows General Flight Compartment Passenger Compartment Door Inspection and Observation Wings General Center Wing Outer Wing Wing TipTitleLeading Edge and Leading Edge Devices 9Sys/Chap Sub-sys/sec -50 -60 -70 -80 -90 Propeller/Rotor Sys/Chap 60 61 -00 -10 -20 -30 -40 -50 62 -00 -10 -20 -30 -40 63 -00 -10 -20 -30 -40 64 -00 -10 -20 -30 -40 65 -00 -10 Sub-sys/sec Propellers/Propulsions General Propeller Assembly Controlling Braking Indicating Propulsor Duct Rotor(s) General Rotor Blades Rotor Head(s) Ailerons and Elevons Spoilers (As Required) Wing Folding SystemTitle Trailing Edge and Trailing Edge DevicesTitle Standard Practices- Propeller/RotorRotor Shaft(s)/Swashplate Assy(ies) Indicating Rotor Drive(s) General Engine/Gearbox Coupling Gearbox(es) Mounts, Attachments Indicating Tail Rotor General Rotor Blades Rotor Head Available Indicating Tail Rotor Drive General Shafts 10Sys/ChapSub-sys/sec -20 -30 -40 Gearboxes Available Indicating Folding Blades/Pylon -00 -10 -20 -30 General Rotor Blades Tail Pylon Controls and Indicating Rotors Flight Control -00 -10 -20 -30 General Rotor ControlTitle6667Anti-Torque Rotor Control (Yaw Control) Servo-Control SystemPower Plane Sys/Chap Sub-sys/sec 70 71 -00 -10 -20 -30 -40 -50 -60 -70 72 -00 -10 -20 -30 -40 -50 -60 -70 -80 Standard Practices - Engine Power Plane General Cowling Mounts Fireseals Attach Fittings Electrical Harness Air Intakes Engine Drains Engine (Engine Turbine/Turbo Prop Ducted Fan/Unducted Fan) General Reduction Gear, Shaft Section (Turbo-Prop and/or Front Mounted Gear Driven Propulsor) Air Inlet Compressor Section Combustion Section Turbine Section Accessory Drives By-Pass Section Propulsor Section (Rear Mounted) Title 11Sys/Chap Sub-sys/sec 72 -00 -10 -20 -30 -40 -50 73 -00 -10 -20 -30 74 -00 -10 -20 -30 75 -00 -10 -20 -30 -40 76 -00 -10 -20 77 -00 -10 -20 -30 -40 78 -00 -10 -20 -30 Engine (Reciprocating) General Front Section Power Section Cylinder Section Supercharger Section Lubrication Engine Fuel and Control General Distribution Controlling Indicating Ignition General Electrical Power Supply Distribution Switching Air General Engine Anti-Icing Cooling Compressor Control Indicating ENGINE General Power Control Emergency Shutdown Engine Indicating General Power Temperature Analyzers CONTROLTitleIntegrated Engine Instrument Systems Exhaust General Collector/nozzle Noise Supressor Thrust Reverser 12Sys/Chap Sub-sys/sec -40 79 -00 -10 -20 -30 80 -00 -10 81 -00 -10 -20 82 -00 -10 -20 -30 -40 83 -00 -10 -20 84 -00 -10 91 115 116 Supplementary Air Oil General Storage Distribution Indicating Starting General Cranking Turbines General Power Recovery Turbo-Supercharger Water Injection General Storage Distribution Dumping and Purging Indicating Accessory Gear-Boxes General Drive Shaft Section Gearbox Section Propulsion Augmentation General Jet Assist Takeoff Charts Flight Simulator Systems Flight Simulator Cuing SystemsTitle  P1 to 99-Description and operation    P101 to 199-Trouble shooting P201 to 299-Maintenance practices,containing:Servicing, Removal/installation,  Adjustment/test, Inspection/check, Cleaning/paint, Repairs. OR P301 to 399-Servicing                 P401 to 499-Removal/Installation P501 to 599-Adjustment/Test           P601 to 699-Inspection/Check  P701 to 799-Cleaning/Paint            P801 to 899-Repairs    第 1 章至第 4 章,第 59 章,第 95 章至第 98 保留给予航空公司使用。 章节 13 to 17, 19, 39, 40, 42 to 44, 46 to 48, 50, 58, 68, 69, 85 至 90, 92 至 94 and 99 尚未指 定,以预留日后 ATA 委员会使用。 132. 何谓手册格式 (Format)? 谓手册格式 册格 ?所有技术文件应以活页的方式呈现,并有下列说明: 飞机及发动机制造业者的技术文件和件号册必须提供手册夹并且标示制造业者的公司,何种 飞机或发动机的手册名称,何种手册的名称。 除此之外,飞机,发动机及主要系统的制造业者必须提供手册:打孔卡片(Punched Card),磁 带(Magnetic Type),微缩影片(Microfilm),微缩片(Microfiche),配合微缩影片(Microfilm)的纸 本。 纸本应该是良好的白色纸质并且双面印刷品不会被透视。 暂时修订(Temporary Revisions)版应该是良好的黄色纸质。 纸张大小 标准大小---- 8.5& X 11& 大型标准---- 11& X 16& (schematics/diagrams/illustrations only) 装订 除了使用微缩影片(Microfilm)外,所有纸张必须装订于三孔活页夹内,距离装订边每孔直径 将是 .31&或是更大直径 .44&。 14 153 在技术文件领域内通用的定义及符号是什么? 在技术文件领域 术文件领 号是什么? 什么Abbreviation AMM / MM ASM / SM / SSM AWM / WM / WDM BCLM / CLS / CLM BITE CMM / OH FCOM / OP FM / AFM FIM FRM IPC MPD / OAMP NDT / NTM PPUB / PBM PIPC RMM SRM TSM Publications Aircraft Maintenance Manual Aircraft System Schematics Manual Aircraft Wiring Diagram Manual Baggage / Cargo Loading System Manual Built-In Test Manual Component Maintenance Manual / Overhaul Manual Flight Crew Operating Manual Airplane Flight Manual Fault Isolation Manual Fault Reporting Manual Illustrated Parts Catalog Maintenance Planning Data / Document On aircraft Maintenance Planning Report Non Destructive Testing Manual Power Plane Build-up Manual Powerplane Illustrated Parts Catalog Ramp Maintenance Manual Structural Repair Manual Trouble Shooting ManualAC ................. Aperture Card CD-ROM ....... Compact Disc - Read Only Memory D .................... Diskette F..................... Cartridge (16mm film) MFC............... Microfiches MT ................. Magnetic tape P1................... Printed one sides P2................... Printed two sides ALL ............... One single document covers all aircraft types. Revision A ............... Added D ............... Deleted N ............... New R ............... Revised AOG ------------------------------- Aircraft On Ground: The highest priority category for processing a Spare Part Order or maintenance action indicating an Aircraft is unable to continue or be returned to revenue service until appropriate action is taken. 16Line replaceable unit ------------ Any product which can be readily changed on Aircraft (LRU) during line maintenance operations Simplified English--------------- A combination of writing rules and a limited vocabulary to be used in preparing maintenance documentation to reduce misinterpretation of maintenance documentation by users. Turn Around Time -------------------It is the average time in calendar days, during any reporting Period or, if applicable, special Reporting for any Specified Component, taken for the processing (i.e., the inspection, test, repair, modification or replacement action) necessary to confirm or restore the serviceability of all such Component Seller Furnished Equipment ---- The Structure provisions, equipment and furnishings provided by Seller. Seller Purchased Equipment --- Equipment and furnishings specified and purchased by Seller to the Customer airline’s requirements and from the Supplier selected by the airline. Buyer Furnish Equipment------ The equipment purchased by the Customer and furnished to Boeing for installation in production airplanes. 174. 飞机的技术文件种类? 术文件737-300/500 AMM AFM BCLM BITE CMM/OH FCOM FIM FRM IPC MPD NDT PPBU RMM SRM SSM WDM A300 ABM AMM ASM AWM CMM/OH FCOM FIM FM FRM IPC MPD NTM PBM PIPC SRM TSM WDM V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V A300-600 V V V V V V V V V V V V V V V V 747-400 V V V V V V V V V V V V V V V V A320 V V V V V V 757 V V V V V V V V V V V V V V V V A330 V V V V V V V V 767 V V V V V V V V V V V V V V V V V V V V V V V V V V V V A340 V V V 777 V V V 18MD-80 AFM CLM CMM/OH FCOM FIM FRM IPC MM NDT OAMP PPBU SM SRM WDM V V V V V V V V V V V VMD-90 V V V VMD-11 V V V V V VV V V V V V VV V V V V V V V5.什么是专用(Customized)技术文件? 什么是 什么 技术文件技术文件仅仅适时于个别的客户/航空公司之机队或飞机。6. 什么是非专用(Non-Customized)技术文件? 什么是 技术文件技术文件适用于对某种机型及其系列飞机之整体的客户。7. 什么是厂家(Vendor)技术文件? 什么是 技术文件由厂家对于其所生产附件而印发之技术文件。此技术文件对于该附件翻修提供所有数据,说 明,及必要的功能测试。 CMM 是具有价值的辅助手册,附件装置在客户飞机的厂家(Vendor)将提供技术文件给客户于 第一飞机交机前,及其后续修订版。 飞机制造厂将扮演航空公司与厂家 CMM 问题的协助角色,但是航空公司必须提出它的完整 需求。8. 什么是飞机维修手册(Aircraft Maintenance Manual)? 什么是 ?飞机维修手册内容包括保养,故障排除,功能测试,系统及装置在飞机上之设备维修;以上 行为适用于停机坪或修护棚厂的飞机。 若通常不是在飞机上执行,而是需要特殊装备才能检查,修理,调整,附件测试,或分解需 用的信息包括在翻修手册,附件维修手册,或厂家翻修手册。 飞机维修手册内容也包括飞机结构检查,但是飞机结构修理是包含在结构修理手册。 199. 什么是飞机线路手册(Aircraft Wiring Diagram Manual)? 什么是 线路手 ?飞机线路手册包含的信息是使电子,电气人员能够对装置在飞机上之电子,电气设备及所有 系统能够加以故障排除,功能测试,修复。10. 什么是飞机图式手册(Aircraft System Schematics Manual)? 什么是 ?飞机图式手册是为了飞机修护人员能够对停机坪更换件(Line Replaceable Unit)故障隔离或是 对飞机系统的了解所准备的,飞机图式手册不可以取代机维修手册或飞机线路手册。11. 什 么 是 飞 机 行 李 / 货 物 装 载 手 册 (Aircraft Baggage/Cargo Loading System Manual)? ?它包含了行李或货物装卸时使用电动及人力操作程序,但是需要参考载重平衡手册以了解装 载位置与重量分布的情形。12. 什么是飞机自动测试装置手册(Aircraft Built-In Test Equipment Manual)? 什么是 机自动 试装置 ?BITE 的内容数据全部取自 FIM,是给修护人员使用的,它包含的程序是取得由各别系统或附 件装有自动测试装置的故障数据。BITE 也有一份陈述故障的报表。 BITE 于 2000 年 10 月并入 FIM,不再使用。13. 什 么 是 飞 机 附 件 修 护 手 册 / 翻 修 手 册 (Aircraft Component Maintenance Manual/Overhaul Manual)? ?对于附件翻修一般信息包含在第 20 章节。 在排列修护数据时飞机附件修护手册是不同于翻修手册,两者提供的数据都是给工场技术人 员来执行维修以确保附件功能完备以达到可以使用。然而,飞机附件修护手册与翻修手册是 不同于在观念;翻修手册是使附件恢复如同新的附件,而飞机附件修护手册是缺点改正后成 为可用附件。工场技术人员有选择性的数据来完成所需要的修护。 手册内容包括序言,分解,清洁,检查,修护,组合,功能测试,特殊工具,件号清单等信 息。 手册内容不包括飞机操作,或是飞机维修信息。对于在飞机上之附件拆装及保养等信息将编 列于 AMM。14. 什么是飞机故障隔离手册(Aircraft Fault Isolation Manual)? 什么是 障隔离手册 离手 ?适用于机坪技术人员,它包含的信息是利用 FAULT CODE 图标及 SCHEMATIC 图标以排除 缺点;它也包含了识别图标的信息以配合 FAULT REPORTING MANUAL,使技术人员与驾 驶员有共同的指引图示。15. 什么是飞机件号手册(Illustrated Parts Catalog)? 什么是 ?飞机件号手册包含的信息是使用在备料,料件需求,储存,更换飞机料件及料件的识别。 2016. 什么是飞机修护计划手册 (Maintenance Planning Data/Document)? 什么是 ?飞机制造厂提供的飞机修护计划手册资料以协助航空公司发展并修订其被核准的定期修护计 划。 在修护计划手册(MPD)内所有的修护项目不是全部都要并入定期修护计划,每家航空公司都 必须对自己的定期修护计划内容及完成负起责任。因此,航空公司应该参考发动机 (Engine), 辅助动力器 (APU),及厂家 (Vendor) 技术文件对于 定期修护计划工作的其它见建议。航空公司也应熟知飞机注册国家的需求。17. 什么是非破坏性检测手册 (Non Destructive Testing Manual)? 什么是 坏性检测手册 ?为确保飞机结构整体无异经由在其未造成恶化前产生损坏,侦测结构损坏情形及缺损是一项 必要的工作。 本手册程序不具有强制性, 它提供给予航空公司检测程序以配合其自有装备或飞机实际需要。 替代的检测技术是可以合乎要求,但是本手册之检测程序已被发展且被使用在飞机上。18. 什么是发动机结合外在附件手册(Power Plane Build-up Manual)? 什么是 ?对于 B747 及 B767 装置 PW4000 的发动机,提供了快速拆装 (Quick Engine Change) 附件的 说明。19. 什么是飞机机坪修护手册(Ramp Maintenance Manual)? 什么是 机机坪修 ?对于修护工作的简易指南,提供了一般保养及机坪 360 度检查所属的工作。包含其内的信息 与其它技术文件相同。有关使用的工具,装备均为飞机或发动机制造厂建议的。 RMM 于 2000 年 10 月并入 AMM,不再使用。20. 什么是飞机结构修理手册(Structural Repair Manual)? 什么是 修理手 ?飞机结构修理手册包含可以被允许的结构损坏标准,结构材质识别,并且对于结构附件可能 发生的损坏给予修理方法,除此之外,它包含飞机一般修理方法及材料。 程序z诸如执行飞机的左右对称检查或是顶起的情况下{与结构修理可以同时进行。机结构 修理手册的数据是被 FAA 认可的。21. 什么是飞机故障排除手册(Trouble Shooting Manual)? 什么是 ?TSM 提供地面修护人员快速而正确的方法去判断系统或附件故障。22. 什么是飞行操作手册(Flight Crew Operating Manual)? 什么是 ?FOM 主要是为了操作的限制, 程序, 性能, 系统信息使飞行组员能够安全及有效的操作飞机。 除此之外,对于飞行组员的训练及复训均可作为依据。 2123. 什么是飞行手册(Airplane Flight Manual)? 什么是 ?AFM 包含被认证的限制,正常,紧急,非正常的操作程序;以及飞机制造厂对客户飞机被认 证的性能数据。24. 什么是飞机故障报告手册(Fault Reporting Manual)? 什么是 ?FRM 适用于空勤组员,包含的资料是用于飞行中故障的报告,故障报告转变成缺点代号并且 传递给下一站的修护人员。这是为了给修护人员充分时间分析,计划维修以避免不必要的飞 机起飞延误。25. 什么是飞机最低装备需求手册(Aircraft Minimum Equipment List Manual)? 什么是 ?假如对于认证时型别及需求的装备有差异时,此种现像是不被允许飞行的,除非这些装备能 够运作。当其它装备能够持续维持安全飞航时,某些装备是可以被允许不能操作的。因此, 某种差异时是被允许继续飞行的。 百度文库-文档分享平台 wyy0103 初试锋芒 二级(384) | 我的文库 | 我的消息(0/4) | 百度首页 | 退出新闻 网页 贴吧 知道 MP3 图片 视频 百科 文库搜索文档帮助全部 百度文库 & 上传文档DOCPDFPPTXLSTXT请勿在未经授权的情况下上传任何涉及著作权 侵权的文档,除非文档完全由您个人创作 &版权提示&页面可帮助您确定您的文档是否侵 犯了他人的版权 点击上传文档即表示您确认该文档不违反文档 分享的使用条款,并且您拥有该文档的所有版填写文档信息 标题民航ATA章节规范权或者上传文档的授权 如果上传文档过程中有任何问题请查看帮助。分类 修改分类 介绍详细讲述了民航ATA章节的规范,包括为什么制定这个规 范,规范中各章节的名字及其大概作用你还可以输入158字关键词ATA 章节 航空 民航 规范推荐关键词: 育儿故事 教案 习题 课外读物家长读物 读后感童话故事唐诗宋词 参考书营养保育 教材婴儿少儿英语食谱学习资料奥数售价免费2020如何合理标价?是指资料每被下载一次,您所获得的积分奖励。提交?2011 Baidu使用百度前必读 文库协议http://wenku.baidu.com/new?fr=uc[ 21:25:48]

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