糖尿病高渗性昏迷时。大多不出现酮症酸中毒，其根本原因是（）
参考答案：胰岛钿胞残留有分泌一定量胰岛素功能
根据句意及首字母或汉语提示完成单词。
1. I don't like summer, because it's too h_____.
2. There are lots of beautiful b_____ in Hainan Island.
3. —How is the w_____ today?—It's cloudy.
4. _____ (冬天) comes, can spring be far behind?
5. We are _____ (惊奇的) to meet an old friend on the street.
飞机在机场上空放掉燃油会带来危险吗？
