Past simple-vs-present-perfect
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The document contrasts the use of the past simple and present perfect tenses in English. It provides 30 sentences for the learner to fill in the blanks with the appropriate verb form. The answer key then provides the correct verbs in the proper tense. Overall, the document aims to help English learners practice and understand the difference between using the past simple and present perfect verb tenses.
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- Exceptions involving different verb tenses
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Cyber fraud is a blanket term to describe crimes committed by cyberattacks via the internet. These crimes are committed with the intent to illegally acquire and leverage an individual's or business’s sensitive information for monetary gain
AstuteAP: AI-Powered Supplier Invoice Automation for Seamless Accounts Payabl...
AstuteAP: AI-Powered Supplier Invoice Automation for Seamless Accounts Payabl...AstuteBusiness
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AstuteAP is an AI-powered tool that automates supplier invoice processing, enhancing efficiency, accuracy, and cost savings by streamlining accounts payable workflows with intelligent automation and seamless integration.
IDM Crack 2025 Internet Download Manger Patch
IDM Crack 2025 Internet Download Manger Patchwistrendugftr
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copy & paste ? ???? https://filedownloadx.com/download-link/
This project provides a cracked version of IDM, enabling users to use the premium features without purchasing a license. This project is for educational purposes only. Using cracked software is illegal and unethical. We strongly recommend purchasing a legitimate license from the official IDM website to support the developers and respect copyright laws.![phase_4_presentation[1] - Read-Only.pptx Iot](https://cdn.slidesharecdn.com/ss_thumbnails/phase4presentation1-read-only-250301195122-ec11f187-thumbnail.jpg?width=560&fit=bounds)
加拿大毕业证（鲍罢惭成绩单）多伦多大学毕业证如何办理
加拿大毕业证（鲍罢惭成绩单）多伦多大学毕业证如何办理taqyed
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文凭购买最佳渠道加拿大文凭多伦多大学成绩单？【q薇1954292140】复刻成绩单加拿大多伦多大学毕业证(UTM毕业证书)毕业证丢失补办 多伦多大学毕业证办理，毕业证外壳加拿大多伦多大学文凭办理，加拿大多伦多大学成绩单办理和真实留信认证、留服认证、多伦多大学学历认证。学院文凭定制，多伦多大学原版文凭补办，扫描件文凭定做，100%文凭复刻。【q薇1954292140】Buy University of Toronto Mississauga Diploma购买美国毕业证，购买英国毕业证，购买澳洲毕业证，购买加拿大毕业证，以及德国毕业证，购买法国毕业证（q薇1954292140）购买荷兰毕业证、购买瑞士毕业证、购买日本毕业证、购买韩国毕业证、购买新西兰毕业证、购买新加坡毕业证、购买西班牙毕业证、购买马来西亚毕业证等。包括了本科毕业证，硕士毕业证。
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特殊原因导致无法毕业，也可以联系我们帮您办理相关材料：
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2：打算回国了，找工作的时候，需要提供认证《UTM成绩单购买办理多伦多大学毕业证书范本》【Q/WeChat：1954292140】Buy University of Toronto Mississauga Diploma《正式成绩单论文没过》有文凭却得不到认证。又该怎么办？？？加拿大毕业证购买，加拿大文凭购买，
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《多伦多大学办本科成绩单加拿大毕业证书办理UTM文凭制作案例》【q薇1954292140】学位证1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。
【q薇1954292140】办理多伦多大学毕业证(UTM毕业证书)专业定制国外文凭学历证书【q薇1954292140】多伦多大学offer/学位证、留信官方学历认证（永久存档真实可查）采用学校原版纸张、特殊工艺完全按照原版一比一制作加拿大多伦多大学毕业证(UTM毕业证书)成绩单制作案例
留信认证的作用：
1. 身份认证：留信认证可以证明你的留学经历是真实的，且你获得的学历或学位是正规且经过认证的。这对于一些用人单位来说，尤其是对留学经历有高度要求的公司（如跨国公司或国内高端公司），这是非常重要的一个凭证。
专业评定：留信认证不仅认证你的学位证书，还会对你的所学专业进行评定。这有助于展示你的学术背景，特别是对于国内公司而言，能够清楚了解你所学专业的水平和价值。
国家人才库入库：认证后，你的信息将被纳入国家人才库，并且可以在国家人才网等平台上展示，供包括500强公司等大型公司挑选和聘用人才。这对于回国找工作特别是进入大公司，具有非常积极的作用。IPv6 - Global and Malaysia's Perspectives
IPv6 - Global and Malaysia's PerspectivesAPNIC
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APNIC's Senior Regional Advisor, Membership and Policy, Sunny Chendi presented on IPv6 at MyAPIGA 2025 held in Putrajaya from 16 to 18 February 2025. 
complete On-Page SEO Best Practices guide
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Mastering On-Page SEO—from keyword optimization and content structuring to technical improvements, UX enhancements, and schema markup. This comprehensive guide ensures that your website is fully optimized for search engines and user experience.KeepItOn-2024-Internet-Shutdowns-Annual-Report.pdf
KeepItOn-2024-Internet-Shutdowns-Annual-Report.pdfsabranghindi
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India’s figure of 84 shutdowns in 2024 is surpassed only by Myanmar, which endured 85 shutdowns under the military junta’s rule. 
Advantages of Outsourcing IT Security Solutions
Advantages of Outsourcing IT Security SolutionsDalin Owen
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Cyber threats advance daily. Organizations must invest to counter them.
Outsourcing IT security provides access to expertise without the full cost of an in-house team.
办理卡普顿大学成绩单触购买加拿大颁叠鲍成绩单文凭定制
办理卡普顿大学成绩单触购买加拿大颁叠鲍成绩单文凭定制taqyed
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在线快速补办加拿大本科毕业证、硕士文凭证书，购买加拿大学位证【q薇1954292140】卡普顿大学Offer，加拿大大学文凭在线购买。高仿真还原加拿大文凭证书和外壳，定制加拿大卡普顿大学成绩单和信封。高仿文凭证书CBU毕业证【q薇1954292140】办理加拿大卡普顿大学毕业证(CBU毕业证书)【q薇1954292140】学历认证报告卡普顿大学offer/学位证成绩单COPY、留信官方学历认证（永久存档真实可查）采用学校原版纸张、特殊工艺完全按照原版一比一制作。帮你解决卡普顿大学学历学位认证难题。购买在线制作本科文凭加拿大文凭购买，加拿大文凭定制，加拿大卡普顿大学文凭补办【q薇1954292140】专业在线定制加拿大大学文凭2025年新版成绩单，定做加拿大本科文凭，【q薇1954292140】复制加拿大Cape Breton University completion letter。
如果您在英、加、美、澳、欧洲等留学过程中或回国后：
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2、面对父母的压力，希望尽快拿到；
3、不清楚认证流程以及材料该如何准备；
4、回国时间很长，忘记办理；
5、回国马上就要找工作《正式成绩单卡普顿大学国外学位认证/毕业证购买》【q薇1954292140】《文凭样本CBU办留服认证》办给用人单位看；
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7、需要报考公务员、购买免税车、落转户口、申请留学生创业基金。
加拿大文凭卡普顿大学成绩单，CBU毕业证【q薇1954292140】办理加拿大卡普顿大学毕业证(CBU毕业证书)【q薇1954292140】成绩单水印卡普顿大学offer/学位证文凭购买最佳渠道、留信官方学历认证（永久存档真实可查）采用学校原版纸张、特殊工艺完全按照原版一比一制作。帮你解决卡普顿大学学历学位认证难题。
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特殊原因导致无法毕业，也可以联系我们帮您办理相关材料：
１：在卡普顿大学挂科了，不想读了，成绩不理想怎么办？？？
2：打算回国了，找工作的时候，需要提供认证《CBU成绩单购买办理卡普顿大学毕业证书范本》【Q/WeChat：1954292140】Buy Cape Breton University Diploma《正式成绩单论文没过》有文凭却得不到认证。又该怎么办？？？加拿大毕业证购买，加拿大文凭购买，
3：回国了找工作没有卡普顿大学文凭怎么办？有本科却要求硕士又怎么办？
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主营项目：
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3、真实使馆认证（即留学人员回国证明），使馆存档可通过大使馆查询确认.
4、留信网认证，国家专业人才认证中心颁发入库证书，留信网存档可查.
《卡普顿大学办留学学历认证加拿大毕业证书办理CBU办理offer》【q薇1954292140】学位证1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。
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留信认证的作用：
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专业评定：留信认证不仅认证你的学位证书，还会对你的所学专业进行评定。这有助于展示你的学术背景，特别是对于国内公司而言，能够清楚了解你所学专业的水平和价值。
国家人才库入库：认证后，你的信息将被纳入国家人才库，并且可以在国家人才网等平台上展示，供包括500强公司等大型公司挑选和聘用人才。这对于回国找工作特别是进入大公司，具有非常积极的作用。
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Elliptic Curve Cryptography Algorithm with Recurrent Neural Networks for Atta...
Elliptic Curve Cryptography Algorithm with Recurrent Neural Networks for Atta...IJCNCJournal
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The increasing use of Industrial Internet of Things (IIoT) devices has brought about new security vulnerabilities, emphasizing the need to create strong and effective security solutions. This research proposes a two-layered approach to enhance security in IIoT networks by combining lightweight encryption and RNN-based attack detection. The first layer utilizes Improved Elliptic Curve Cryptography (IECC), a novel encryption scheme tailored for IIoT devices with limited computational resources. IECC employs a Modified Windowed Method (MWM) to optimize key generation, reducing computational overhead and enabling efficient secure data transmission between IIoT sensors and gateways. The second layer employs a Recurrent Neural Network (RNN) for real-time attack detection. The RNN model is trained on a comprehensive dataset of IIoT network traffic, including instances of Distributed Denial of Service (DDoS), Man-in-the-Middle (MitM), ransomware attacks, and normal communications. The RNN effectively extracts contextual features from IIoT nodes and accurately predicts and classifies potential attacks. The effectiveness of the proposed two-layered approach is evaluated using three phases. The first phase compares the computational efficiency of IECC to established cryptographic algorithms including RSA, AES, DSA, Diffie-Hellman, SHA-256 and ECDSA. IECC outperforms all competitors in key eneration speed, encryption and decryption time, throughput, memory usage, information loss, and overall processing time. The second phase evaluates the prediction accuracy of the RNN model compared to other AI-based models DNNs, DBNs, RBFNs, and LSTM networks. The proposed RNN achieves the highest overall accuracy of 96.4%, specificity of 96.5%, precision of 95.2%, and recall of 96.8%, and the lowest false positive of 3.2% and false negative rates of 3.1%.
Past simple-vs-present-perfect
- 1. PAST SIMPLE vs PRESENT PERFECT Complete the sentences with the appropriate form of the verbs in brackets. 1.- They _________ (write) their exams yesterday. 2.- They _________ (start) building their new house 18 months ago. 3.- I ________ (meet) the company manager two weeks ago. 4.- I ________ (be born) in 1964. 5.- That was the best concert I _____ ever _______ (see). 6.- I __________ (not eat) anything since breakfast. 7.- I _________ (study) English for 10 years. 8.- You ___________ (change) your address recently. 9.- When I was 15 I _________ (go) to Dublin. 10.- My students _________ (raise) a lot of money for charity. 11.- We _________ (not go) to the cinema last night. 12.- My uncle ________ (arrive) in Lisbon last night but he _________ (not call) 13.- We _________ (not see) Pedro Almodovar’s new film yet. 14.- _________ (you go) abroad this year? 15.- The shop is probably closed because they _______ (go) for lunch. 16.- When I ______ (be) at school I ______ (not like) Maths. 17.- What’s the matter with your brother? He ________ (lose) his mobile. 18.- Mark Spitz ________(win) seven Olympic gold medals in 1972. 19.- Why are you crying? Because I _______ (cut) my finger. 20.- When Mary was young she _______ (love) skiing. 21.- There _______ (be) a lot of accidents last year, and there _________ (be) a lot this year, too. 22.- My students __________ (not study) hard last term, but they ______ (study) hard this term. 23.- When my niece ______ (be) at school, she ________ (play) in a handball team. 24.- After I _____ (leave) school, I ______ (take) a job on the library. 25.- I’m afraid the last train ________ (leave) an hour ago. 26.- Thank you for your offer but I _________ (decide) not to accept. 27.- Yesterday I __________ (lose) my wallet. 28.- We ________ (not speak) to your sister for a long time. 29.- When we ________ (reach) the cinema, there _______ (not be) any tickets left. 30.- Take your umbrella with you. It ________ (start) raining.
- 2. ANSWER KEY. 1.- wrote 2.- started 3.- met 4.- was born 5.- have ever seen 6.- haven’t eaten 7.- have studied 8.- have changed 9.- went 10.- have raised 11.- didn’t go 12.- arrived / didn’t call 13.- haven’t seen 14.- have you been 15.- have gone 16.- was / didn’t like 17.- has lost 18.- won 19.- have cut 20.- loved 21.- were / have been 22.- didn’t study / have studied 23.- was / played 24.- left / took 25.- left 26.- have decided 27.- lost 28.- haven’t spoken 29.- reached / weren’t 30.- has started