患者，男性，56岁。因脑出血脑疝致中枢性呼吸衰竭，经口气管插管机械通气，2分钟前翻身
题型：单项选择题 A2型题
问题：
患者，男性，56岁。因脑出血脑疝致中枢性呼吸衰竭，经口气管插管机械通气，2分钟前翻身拍背后突然出现全身发绀，SpO2下降至30%～40%，双侧呼吸音不能闻及，下列原因可能性最大的是（）
A.血氧饱和度监护仪故障
B.呼吸机通气参数设置不当
C.气管插管脱出
D.气道痉挛
E.痰液阻塞
题型：单项选择题 A2型题
阅读下文，从各小题所给的四个选项中选出能回答所提问题或完成所给句子的最佳答案。
Read the passages below, then think about what they will do if they have 5 million.
Alan is a kind old man. He has no children but he likes children very much. He said he would give 3
million to the poor children in the mountains if he got 5 million.
John can make shoes and his skills are very good. He is making a living-making shoes for others. He is
very tired every day because he has to work late. He would start. his own shoe shop and factory if he got
5 million.
Tim is a young man. He is a bus driver. He is active and he likes swimming very much. Now he has to
rent a room to live because he can't afford to buy a house. He hopes he can buy a house with a swimming
pool.
Jack is a teacher. His house is far away from his school. He has to get up very early to catch the
earliest bus, or he will be late for school. He said he didn't need to get up so early if he had a car.
Sam is a man in the mountain. His hometown is very poor. People have to buy everyday things and other
things from a shop far away and carry them on their back home because there is no road there. He wants
to build a road for his hometown.
1. Match the names with the correct pictures. Write down the letters from the pictures above.
Alan _____
John _____
Tim _____
Jack _____
Sam _____
2. What's John's problem now?
A. He is good at making shoes.
B. His skills are very well.
C. He has to make shoes in his own company.
D. He works so late that he is too' tired.
3. What's Tim like?
A. He has to rent a room to live in.
B. He is a bus driver.
C. He likes swimming very much.
D. He is an active young man.
4. How does Jack go to work every day?
A. By bus.
B. By car.
C. On foot.
D. By bike.
5. Where does Sam live now?
A. In a big city.
B. In a town.
C. In a rich village.
D. In a poor mountain.