题目

Psychology tells us that many people hate to take risks. But it is good for us to take risks, especially when the risk is to achieve a desired result. In that way, we become stronger and braver. Our human nature should be to take risks, but some people just sit and wish they didn’t have the fear to move on. This is because of one or two failures in their lives. Please step out and don’t let the past hold you back from living life to the fullest. Move forward and move on! In studying the psychology of taking risks, we find that human nature provides us with the desire to experiment a如图是我国发行的一枚纪念明代科学家宋应星的邮票。宋应星的重要成就是A．发明指南针B．发明活字印刷术C．编著《本草纲目》D．编著《天工开物》