某同学到了傍晚时就看不见东西,患了夜盲症,他体内缺少的维生素可能是( ) A.维 发布时间:2017-04-15 02:36 │ 来源:www.tikuol.com 题型:选择题 问题: 某同学到了傍晚时就看不见东西,患了夜盲症,他体内缺少的维生素可能是( )A.维生素AB.维生素BC.维生素CD.维生素D
题型:选择题 Edison, who was considered ______ the bulb, is considered ______ the greatest inventor of the last century.A. to invent; as B. inventing; to beC. having invented; for D. to have invented; / 查看答案