2012年6月大学英语四级考试真题试题及答案解析(完整版)
Part Ⅰ Writing (30minutes)
Directions: For this part, you are allowed 30 minutes to write a short essay entitled Excessive
Packaging Packaging following following following the the the outline outline outline given given given below. below. below. YYou ou should write should write at at least least least 120 words 120 words but but no no no more more
than 180 words.
1.目前许多商品存在过度包装的现象目前许多商品存在过度包装的现象
2.出现这一现象的原因出现这一现象的原因
3.我对这一现象的看法和建议我对这一现象的看法和建议
On Excessive Packaging
Part Ⅱ Reading Comprehension(Skimming and Scanning)(15minutes)
Directions: In this part, you will have 15 minutes to go over the passage quickly and answer
the questions on Answer sheet 1. For questions 1-7,choose the best answer from the four choices marked A)，B)，C)and D). For questions 8-10,complete the sentences with the information given in
Homework 3
CDA 5155: Spring 2014
Due Date: March 26, 2014 11:30 PM (EDGE: March 28, 2014 11:30 PM)
You are not allowed to take or give help in completing this assignment. Submit the PDF version of the
submission in e-Learning website before the deadline. Please type your solution in Word and generate
the PDF. Handwritten (scanned) solutions are difficult to read and grade, therefore, please do not submit
scanned PDF. Please include the sentence in bold on top of your submission (PDF): “I have neither
given nor received any unauthorized aid on this assignment”.
Problem 1 [ 2 points]
Assume two cache levels L1 and L2 where L1 has 2 lines (blocks) and L2 has 4 lines, both are fully
associative. Each block contains only one data. Memory requests always go to L1 first. If it hits L1, no
request will be issued to L2. You have the following sequence of memory requests. L1 and L2 are
JournalofMaterialsProcessingTechnology211(2011)750–758
ContentslistsavailableatScienceDirect
JournalofMaterialsProcessing
Technology
journalhomepage:/locate/jmatprotec
Performanceofacuttingtoolmadeofsteelmatrixsurfacenano-composite
producedbyinsitulasermeltinjectiontechnology
O.Verezuba,Z.Kálazib,A.Sytchevac,L.Kuzsellad,G.Buzab,N.V.Verezube,A.Fedorovf,G.Kaptayg,h,∗
aUni.Miskolc,Dep.ProductionEng.,Egyetemvaros,3515Miskolc,HungarybBAY-ATI(RIforMaterialsScienceandEngineering),Fehervariut130,Budapest,HungarycBAY-NANO(RIforNanotechnology),Dep.Nano-metrology,3515Miskolc,Egyetemvaros,E/7,HungarydUni.Miskolc,Dep.PolimerEng.,Egyetemvaros,3515Miskolc,HungaryeNationalTechnicalUniversity(“KharkovPolytechnicalInstitute”),Frunzest.21,Dep.IntegratedTechnologiesinMachineBuilding,Kharkov,UkrainefARC-TheAustralianReinforcingCompany,518BallaratRoad,Sunshine,3020VIC,Melbourne,AustraliagBAY-NANO(RIforNanotechnology),Dep.Nano-compositesandUni.Miskolc,Egyetemvaros,E/7,3515Miskolc,HungaryhUniversityofMiskolc,Dep.Nanotechnology,Egyetemvaros,E/7,3515Miskolc,Hungary
韩电集团.宁波韩电线缆有限公司 综合布线系统解决方案
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韩电
综合布线系统解决方案
前 言
随着信息技术的发展，通信需求从单一的话音逐渐转向集语音、文字、数据、图像、视频为一体的多媒体通信业务，对信息的传输速率、传输信道的带宽都提出了更高的要求，信息的数字化、智能化、宽带化是目前和未来的方向。因此，高性能的数据传输网络已成为现代数据通信系统的核心。在网络设计时，不仅仅要考虑网络类型的选择，更重要的是要考虑网络的速率和带宽，以及为满足未来需求而预留的余量。
韩电集团依托严格的质量保证体系，为用户提供完整的结构化布线解决方案，结合优秀的产品和服务，满足用户所需集各种语音、数据、图像等信息的服务。韩电综合布线系统不但满足目前千兆、万兆以太网的需求，同时其模块化的解决方案更为系统的不断扩展升级提供了可能。
配线架跳线架跳线光缆电缆水平布线电缆面板模块跳线 韩电集团.宁波韩电线缆有限公司 综合布线系统解决方案
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目录
一．综合布线系统概述 ........................................................................................................................................... 3
1.1 概述 ............................................................................................................................................................ 3
