26. In paragraph 4, the author compares one type of WLED with fluorescent light because they both
24. In paragraph 5, what achievement of Shuji Nakamura does the author mention?
20. What is NOT mentioned as a factor that make an athlete successful?
19. What does Greg Louganis do?
11. What is the passage mainly about?
13. The word 'generate' in paragraph 3 is closest in meaning to
12. The word 'more' in paragraph 2 refers to
14. Having a lot of slow-twitch muscle fibers is particularly important for
18. In which space (marked A, B, C and D in the passage) will the following sentence fit?
Some athletes' abilities are naturally enhanced by their environment.
16. What advantage do athletes from high-altitude countries have?