维生素C与氨茶碱配伍可产生() A.浑浊 B.沉淀 C.结晶 D.变色 E.盐析 发布时间:2017-08-25 22:05 │ 来源:www.tikuol.com 题型:单项选择题 A1/A2型题 问题: 维生素C与氨茶碱配伍可产生()A.浑浊B.沉淀C.结晶D.变色E.盐析
题型:单项选择题 A1/A2型题 — Can I use the telephone on the table. sir? — Under no circumstances _____ to use the telephone in the office for personal affairs. [ ]A. anyone is allowed B. nobody is allowed C. is anyone allowed D. is nobody allowed 查看答案