夜盲症可能是由于缺乏() A.维生素A B.维生素D C.维生素B1 D.维生素B2 发布时间:2019-02-17 10:10 │ 来源:www.tikuol.com 题型:单项选择题 问题: 夜盲症可能是由于缺乏()A.维生素AB.维生素DC.维生素B1D.维生素B2E.维生素C
题型:单项选择题 句型转换。1. The pens are in the backpack. (对画线部分提问) _____ _____the pens?2. This tape is in that case. (改为复数句子) _____ in _____ _____.3. I can spell the word.(改为一般疑问句) _____ _____ spell the word?4. I know that boy. (改为否定句) I _____ _____ that boy.5. take, to. book, your. the, please, math, sister (连词成句) 查看答案