男性，84岁，左半结肠切除术后第一天，呼吸困难。查体：神清，心_爱下问搜题

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问题单项选择题 A3/A4型题

男性，84岁，左半结肠切除术后第一天，呼吸困难。查体：神清，心率116次／分，呼吸36次／分，四肢活动自如，血气分析pH7.32，Pa0₂3.6kPa（27mmHg），PaC0₂6.27kPa（47mmHg），右肺呼吸音明显减弱，左肺可闻少量干性啰音及轻度呼气相哮鸣音。

首要治疗措施为（）

A.正压机械通气，迅速改善氧合

B.积极扩容、抗休克治疗

C.大量糖皮质激素和选择性β2受体兴奋剂，解痉平喘

D.积极抗凝溶栓治疗

E.高流量面罩吸氧，辅以镇静止痛药物

答案

参考答案：A

完形填空

One sunny afternoon, a seven-year-old girl went for a walk. She crossed a large area of grassland into the woods __   __ she realized that she was lost.
Sitting on a rock and __  __ what to do, she began crying. After a while，she__  __ to walk along a path with tall trees and thick bushes. When it was getting dark, she saw a small, dark wooden house. She opened the door and __  __ entered. Suddenly, she heard a strange noise, and she ran out of the door and back to the __  __. Cold and tired, she fell asleep near a stream（小溪）.
The girl’s parents were out and her dog, Laddy, was at home. Laddy sensed that his mistress（女主人）was in danger. He jumped __  __ a window, breaking the glass. He looked in the fields. But he couldn’t find his mistress anywhere. However, from the ground came a __   __ scent (气味) as he lowered his head. He __  __ the scent and walked across the grassland. Barking __   __ into the air, the dog __  __ through the woods until he found the __  __. But the girl was not there, so he headed back to the woods. Much to his delight, he saw his mistress’ blue shirt in the distance. He __  __ over some bushes and saw the little stream, where the girl was __   __.
When she opened her eyes and       her dog standing beside her, the girl said, “you      me, Laddy,” and she kissed him several times. Seeing their daughter and dog coming back, the parents were happy. That night Laddy had a hero’s supper: a huge meal of pork.

C．remembering

D．unwillingly

单项选择题 A1/A2型题

胆碱能性荨麻疹典型皮损的特点为（）。

A.风团直径大小不等

B.风团直径8～10mm，周围无红晕

C.风团直径8～10mm，周围有一较小红晕

D.风团直径2～3mm，周围无红晕

E.风团直径2～3mm，周围有一较大红晕