问题 单项选择题 A3/A4型题

男性,28岁。2周前右脚受伤划破皮肤,未予注意。3天前高热、皮肤瘀点就诊。血压10.6/6.7kPa(80/50mmHg)。X线摄片肺实质未见明显病变。诊断败血症、感染性休克。经积极治疗血压仍不平稳,并出现气急,呼吸空气时PaO26kPa(45mmHg)。

该患者是否应用机械通气治疗有下列不同观点,你认为哪一种是正确的()

A.绝对禁忌,因会影响回心血量和心输出量,加重循环衰竭

B.相对禁忌

C.具有应用指征,宜在纠正休克的同时及早使用

D.先纠正休克,然后再应用机械通气

E.选择性应用,如出现PaCO2升高时

答案

参考答案:C

选择题
阅读理解

阅读理解。

      In 1988, Mary Andersen was at the Miami airport checking in for a flight to Norway to be with her

husband when she was told she wouldn't be able to check her luggage without paying a $ 100 surcharge

(超载).

     Mary had no money as her new husband had left for Norway and she had no one else to call. 

    "I was completely desperate and tried to think which of my things I could manage without." says

Mary.

     As tears ran down her face, a voice behind her said,"That's okay, I'll pay for her."

      Rather surprised, Mary turned around to see a tall man whom she had never seen before. He had a

gentle and kind voice mat was firm and decisive.

     Although this happened twenty years ago, Mary still remembers the authority that radiated (发出)from

the man, Mary was pleased to bring her luggage to Norway and told the stranger she would give his money

back. The man wrote his name and address on a piece of paper he gave to Mary. She thanked him repeatedly

When she finally walked off towards the boarding gate, he waved goodbye to her.

     That man turned out to be Barack Obama.

     Mary paid the money back to Obama the day she joined her husband. At that time he had just finished

his job as a poorly paid community worker in Chicago, and had started his law studies at Harvard University.

     In the spring of 2006 Mary's parents heard Obama was considering a run for president. They wrote a

letter saying that they would support him. At the same time, they thanked Obama for helping their daughter

18 years earlier.

     And Obama replied," I want to thank you for the lovely things you wrote about me and for reminding

me of what happened at Miami airport. I'm happy I could help her then, and I'm delighted to hear that your

daughter is happy in Norway. Please send her my best wishes. Sincerely, Barack Obama, United States

Senator."

1. Why did Mary feel completely desperate?

A. She had missed the only flight to Norway.

B. Her new husband abandoned her suddenly.

C. She didn't have the money to buy a ticket.

D. She had no money to pay for the surcharge.

2. How did Mary feel when someone offered to help her?

A. Amazed.

B. Puzzled.

C. Delighted.

D. Annoyed.

3. Mary asked the stranger to leave his name and address ____.

A. in order to contact him later

B. so that she could repay him

C. because impressed her deeply

D. because she fell in love with him

4. What's the passage mainly about?

A. A letter from Barack Obama.

B. Mary's parents support Obama.

C. Obama helped a stranger about 20 years ago.

D. Mary was lucky to get help at the airport.