The video owner has disabled playback on external websites.
This video is no longer available on YouTube.
This video cannot be played right now.
Watch on YouTube
B1 中级
英语
14:48
Educational
IMMUNOLOGY- Innate Immunity and Adaptive Immunity (FL-Immuno/01)
学习统计
B1
CEFR 等级
5/10
难度
评论 (0)
登录后评论
还没有评论。成为第一个分享想法的人！
互动模式
测验
正确！
不太对。
正确答案：
相关视频
How to Help Angry, Unhappy Customers! Business English for Customer Service On the Phone
B1
20:56
The Godfather: Part II: Full Opening Scene | Vito Corleone's Beginnings
B1
11:19
Schools of Economics Explained: Keynesian, Neoclassical, Chicago, Austrian | Lex Fridman Podcast
B1
27:10
Harry Potter - Dumbledore's Speech HD
B1
2:53
Body Planes & Sections
B1
4:15
Frank Lectures
测验
正确！
不太对。
正确答案：
观看视频时会出现测验
记忆技巧
来自此视频
免费开始学语言
