第五课 演讲稿 能的来源

1. Photo by Diogo Martins. - Creative Commons Attribution-NonCommercial-ShareAlike License http://www.flickr.com/photos/15441441@N00 Created with Haiku Deck

2. Photo by rishibando - Creative Commons Attribution-NonCommercial License https://www.flickr.com/photos/27590002@N04 Created with Haiku Deck

3. Photo by mediaguy4 - Creative Commons Attribution-NonCommercial-ShareAlike License https://www.flickr.com/photos/89809648@N00 Created with Haiku Deck

4. Photo by Ya-Yin - Creative Commons Attribution-NonCommercial License https://www.flickr.com/photos/81979456@N00 Created with Haiku Deck

5. Photo by Pacific Northwest National Laboratory - PNNL - Creative Commons Attribution-NonCommercial-ShareAlike License http://www.flickr.com/photos/36016325@N04Created with Haiku Deck

6. Photo by boegh - Creative Commons Attribution-ShareAlike License http://www.flickr.com/photos/48971960@N06 Created with Haiku Deck

7. Photo by Onasill ~ Bill Badzo - Creative Commons Attribution-NonCommercial-ShareAlike License http://www.flickr.com/photos/7156765@N05 Created with Haiku Deck

8. Photo by Erik K Veland - Creative Commons Attribution-NonCommercial License http://www.flickr.com/photos/16346469@N00 Created with Haiku Deck

9. Photo by moria - Creative Commons Attribution License http://www.flickr.com/photos/49503029034@N01 Created with Haiku Deck

10. Photo by brewbooks - Creative Commons Attribution-ShareAlike License http://www.flickr.com/photos/93452909@N00 Created with Haiku Deck

12. Photo by Pedro Moura Pinheiro - Creative Commons Attribution-NonCommercial-ShareAlike License http://www.flickr.com/photos/56044438@N00 Created with Haiku Deck