色是()刺激人的视觉器官后所产生的一种生理感觉。 ["颜色","光","眼睛","大脑"]
国际贸易商品结构
“我们俩比一比。”其中的“比”是()。 ["介词","助词","名词","动词"]
精装书芯的装订方式很多,但不包括下列哪个() ["骑马订","锁线订","塑料线烫订","缝纫订"]
古罗马大角斗场的柱式每层均不同,其中至下而上第二层为()柱式。 ["塔司干","爱奥尼","科林斯","组合"]
What tricks can a teacher teach his students to use to memorize vocabulary?