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His experiments always fill schools' lecture halls with laughter. Some viewers call him "a Harry Potter-like magician", but he disagrees. "A magician never tells the secrets behind his tricks, but a scientist always gives an explanation. "He sees himself as a teacher. He performs experiments to spread knowledge, inspire thinking, remove misunderstandings and show that science can create change. Evans says he looks forward to more chemical reactions"with China 24. Who is David Evans according to the passage? AA manager of KFC B A film celebrity C. A chemistry teacher D. A British magician 25. What can we learn from the third paragraph? A Evans considered UK to be a country full of mysteries B. Evans first visited Chinese mainland in the 1970s C. Evans was in no mood to move to Beijing D. Evans attended a chemistry conference in China in 1987 26. Why did Evans begin to post videos of experiments on the Internet? A. To popularize science B. To rise to fame C. To apply short-video apps