患者出现下列哪些现象,表明胃管插入气管,应立即拔出胃管,休息片刻后再重新插入()。
A.恶心
B.呛咳
C.发绀
D.呕吐
E.呼吸困难
参考答案:B, C, E
单词拼写。
1. There will be more and more _______(图书馆) for us to read books.
2. Mr Green is a doctor. He works in a h_______.
3. Tigers and lions are d_______ animals.
4. I went to Shanghai and _______(喜欢) in love with it.
5. He can do his homework by _______(自己)
6. We go to school every day e_______ Sunday.
7. Joining the English club is the best way to _______(提高) our speaking skills.
8. I used to be a_______ of being alone when I was very young.
9. October _______(十二) is my friend's birthday.
油、水、气管路系统中常用的执行元件有()
A.电磁阀、电磁空气阀、液压操作阀
B.电磁阀、电磁空气阀、电磁配压阀
C.电磁阀、电磁空气阀、电磁配压阀、液压操作阀
D.电磁阀、液压操作阀、电磁配压阀