多选题\n Which of the following can help you make a difference and even make you more likeable in a public speech? A. Smile slowly. B. Make eye contact. C. Have good posture. D. All of the above. \n简答题\n Dopamine is the chemical that is released by our brain that motivates us to do things. 正确 错误 \n多选题\n “Spirit of craftsmanship” can be found in ______. A. traditional industries B. science and technology sector C. handicraft industry D. All above \n