夜盲症产生的原因是( )A. 视紫红质缺乏 B.维生素D缺乏 C.全反型视黄醛 发布时间:2017-05-27 04:26 │ 来源:www.tikuol.com 题型:单项选择题 问题: 夜盲症产生的原因是( )A. 视紫红质缺乏B.维生素D缺乏 C.全反型视黄醛过多D.11-顺型视黄醛过多E.视蛋白合成障碍
题型:单项选择题 She's ______; she doesn't like to meet people. [ ]A. a kind of outgoing B. a kind of friendly C. kind of interesting D. kind of shy 查看答案