单选题:出现牙龈浮肿、出血或萎缩症状,很可能是因为缺乏__________。 题目分类:公共营养师二级 题目类型:单选题 查看权限:VIP 题目内容: 出现牙龈浮肿、出血或萎缩症状,很可能是因为缺乏__________。 A.维生素A B.铁 C.维生素B1 D.维生素C 参考答案: 答案解析:
This passage might be extracted from the paper about________ This passage might be extracted from the paper about__________.A.Something about 分类:公共营养师二级 题型:单选题 查看答案
Which of the following statements about cross culture commun Which of the following statements about cross culture communication is false?___ 分类:公共营养师二级 题型:单选题 查看答案