单选题:Why does the woman want to go on Saturday afternoon? 题目分类:公共英语二级 题目类型:单选题 查看权限:VIP 题目内容: Why does the woman want to go on Saturday afternoon? A.To avoid the crowd. B.To enjoy nice weather. C.To sleep late in the morning. 参考答案: 答案解析:
在维生素D的代谢中,活性最强的是 在维生素D的代谢中,活性最强的是A.1,25-二羟维生素D3 B.25-羟维生素D3 C.麦角骨化醇 D.胆骨化醇 E.24,25一二羟维生素D3 分类:公共英语二级 题型:单选题 查看答案