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17 years ago, Krishna Kumar started offering free PMP prep online. Today, it’s a leading digital upskilling platform that helps millions upskill in AI, cybersecurity, data science, and more.

Class Central Team Jun 22, 2026

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病理检验技术


掌握病理组织制片、染色和免疫组织化学的专业技术，通过实践操作学习细胞学检验的关键步骤和方法，提升病理诊断支持能力。
- XuetangX
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- Free Online Course
放射学进展


放射学进展这门课程举例介绍在医学影像诊断及技术领域的新进展及研究新发现。
- XuetangX
- Self-Paced
- Free Online Course
老年照护


掌握老年人日常生活照护、医疗护理和应急救助的专业技能，培养尊老爱老的服务理念，提供高质量的老年照护服务。
- XuetangX
- Self-Paced
- Free Online Course
屈光手术学


屈光手术学是眼科学中重要的一个亚专业，它带领我们认知屈光的原理及进展、该课程包含各种屈光手术的临床处理原则手术的选择及并发症的处理等科学问题，是眼科学研究生的专业核心课程。
- XuetangX
- Self-Paced
- Free Online Course
Chinese acupuncture and moxibustion

Have you ever seen a "silver needle"? Have you ever experienced moxibustion? What are the legendary stories of acupuncture? Let's go into the class of acupuncture and moxibustion and uncover its magical veil.
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儿童口腔医学


儿童口腔医学是研究自胎儿至青少年这一时期，小儿牙颌系统的生长发育、保健和疾病防治的医学科学。它服务的对象是18岁以下的儿童、青少年。
- XuetangX
- Self-Paced
- Free Online Course
医学统计学


统计学思维助力医学科学研究！医学统计学提供有效提取，分析和解释信息的理论和方法，为知识生成提供得力工具！
- XuetangX
- Self-Paced
- Free Online Course
人体断层影像解剖学


Delve into sectional anatomy through medical imaging, mastering CT, MRI, and ultrasound interpretation of human body structures across different anatomical regions for diagnostic expertise.
- XuetangX
- Self-Paced
- Free Online Course
Pathogen Biology and Immunology

Master essential concepts of pathogen biology and immunology, from bacterial and viral pathogens to immune system functions, with hands-on lab experience and practical clinical applications.
- XuetangX
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药物化学


药物是人类用来预防、治疗、诊断疾病或为了调节人体功能、提高生活质量、保持身体健康的特殊化学品，并符合药品质量标准，经政府相关部门批准的化学物质
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药剂学


Discover the comprehensive science of pharmaceutical formulations, from basic theory and design to production processes, absorption mechanisms, and drug delivery systems.
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药物分析


Dive into pharmaceutical analysis methods, quality control techniques, and analytical procedures for drug development, manufacturing, and clinical applications across various pharmaceutical compounds.
- XuetangX
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- Free Online Course
应用写作


Master practical writing skills through 9 essential document types, from official notices to business correspondence. Learn standardized formats, clear communication techniques, and hands-on practice for professional writing proficiency.
- XuetangX
- Self-Paced
- Free Online Course
实用日语（下）

Dive into practical Japanese through 6 themed units covering daily activities, shopping, gifts, sports, cooking, and kimono, with authentic cultural insights and native speaker guidance.
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实用日语（上）

Dive into practical Japanese through daily conversations, covering essential topics from self-introduction to music preferences, while exploring cultural comparisons and common usage scenarios.
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