Coderbyte官网
Improve your coding skills with our library of 300+ challenges and prepare for coding interviews with content from leading technology companies.Coderbyte 提供了200多种编程挑战。在这里，你可以：使用10种编程语言中的一种进行在线挑战。看到网站发布的大多数挑战的官方解决方案。查看该网站其他80万用户为同一挑战提供的解决方案。
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Toastmasters International国际演讲会官网
国际演讲会(Toastmasters International)是一个国际非盈利组织，通过其数以千计之属会，该组织提供有沟通及领导两方法的课程，课程主要教授说话，聆听及思考的技巧。目的为帮会员提升其沟通，演讲及领导技巧。Become the Leader and Speaker you want to be
- 2015-11-24 - 收藏
Khan Academy
Learn for free about math, art, computer programming, economics, physics, chemistry, biology, medicine, finance, history, and more. Khan Academy is a nonprofit with the mission of providing a free, world-class education for anyone, anywhere.
- 2014-05-22 - 收藏
可汗学院Khan Academy
Learn for free about math, art, computer programming, economics, physics, chemistry, biology, medicine, finance, history, and more. Khan Academy is a nonprofit with the mission of providing a free, world-class education for anyone, anywhere.
- 2013-11-17 - 收藏