胸壁损伤中最易发生纵隔扑动的是（） A.闭合性气胸 B.开放性气_爱下问搜题

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问题单项选择题

胸壁损伤中最易发生纵隔扑动的是（）

A.闭合性气胸

B.开放性气胸

C.张力性气胸

D.血胸

E.多根肋骨骨折

答案

参考答案：B

解析：因为选项A、C、D、E双侧肺内压均衡，故可排除。开放性气胸伤侧肺内压高于健侧，纵隔向健侧移位，进一步使健侧肺扩张受限。呼、吸气时，两侧胸膜腔压力不均衡出现周期性变化，使纵隔在吸气时移向健侧，呼气时移向伤侧，称为纵隔扑动。

完形填空

I was working as a consultant(顾问) in a beer company, helping the president and senior vice-presidents with something important. It was a big   16  . At the same time, my mother was in the 17 stages of cancer. .
I worked during the day and 18 40 miles home to be with her every night. It was 19 and stressful, but it was what I wanted to do. My promise was to continue to do excellent consulting during the day, 20  my evenings were very hard. I didn’t want to 21 the president with my situation. 22  I felt someone at the company wanted to 23 what was going on. So I told the vice-president of Hunan Resources, asking him not to 24 the information with anyone.
A few days 25 , the president called me into his office. I 26 he wanted to talk to me about one of the many issues we were 27 on. When I entered, he asked me to sit down. He faced me from across his large 28 , looked me in the eye and said, “I   29  your mother is very ill.”
I was totally 30 by surprise and burst into tears. He just looked at me, let my 31  subside(平息)，and then he 32 said a sentence I will never forget: “Whatever you need.” That was it. His 33 and willingness to both let me be in my pain and to offer me 34   were qualities of compassion(同情) that I   35 with me to this day.

D．frightening

C．even though

B．understanding

单项选择题 B型题

兼有抗衰老、抗动脉硬化、润肠通便作用的药是（）

A.人参

B.甘草

C.当归

D.芒硝

E.何首乌