题目

在各种色光中，被称为三原色光的是（ ）A．黄、绿、蓝 B．红、黄、蓝C．红、黄、绿 D．红、绿、蓝 答案：【答案】D【解析】解：在各种色光中，被称为三原色光的是红、绿、蓝．故选D．After talking with his father for about half an hour, he felt better and began to know how to ____ this kind of situation.A.strengthenB.exploreC.handleD.arrange