【多选题】关于颜色的属性描述正确的是?
A.
色彩具有黄色、红色、绿色等性质,这被称之为色相。
E.
光波波长越单纯,色相纯度越低,相反,色相的纯度越高,色相的纯度显现在有彩色里。
F.
黑色的绝对明度被定义为100(理想黑),而白色的绝对明度被定义为0(理想白)
【简答题】Main idea: Heifer International helps people by giving them animals. Detail: ( )
【多选题】The story shows a strong narrative and vivid eye for details.
【单选题】Giving strong eye contact during multicultural negotiations is _____.
【判断题】Public speakers who establish strong eye contact are usually perceived as more credible than speakers who have weak eye contact.
【简答题】9 在外圆车削时如果刀尖低于工件旋转中心 , 那么其工作前角会 ___________________