单选题 Many stockholders got very nervous when the price went down and sold their stocks at once, while ______ investors held their stock until prices rose again.(2006年中国矿业大学考博试题)
【正确答案】 C
【答案解析】解析:四个选项中,shabby的意思是“破烂的,破旧的”;restless的意思是“焦躁不安的,烦躁的”;shrewd的意思是“精明的,狡猾的”;naive的意思是“天真的,幼稚的”。根据题意,C项为正确答案。