患者，男，60岁。患慢性冠状动脉供血不足20余年，伴心房纤颤10年。2小时前突然出现左下肢剧烈疼痛，开始为大腿上部急袭痛，触痛明显，足背动脉搏动消失，检查发现在大腿上部触及一较明显变温带，脚趾活动困难。
最可能的原因是
A. 急性左下肢动脉栓塞
B. 左下肢深静脉血栓形成
C. 左下肢深静脉瓣膜功能不全
D. 血栓闭塞性脉管炎
E. 动脉瘤
查看答案
Which of the following is a shared feature of the sleepless elite？
A. They are much thinner than most people.
B. They ignore all physical and emotional pains.
C. They are the Internet almost six hours a day.
D. They always think positive in face of difficulties.
患者，男，68岁。突起剧烈压榨样胸痛、呕吐伴窒息感2小时入院。查心率110次/分，血压85／60 mmHg，心电图示V1～V4导联ST段呈弓背向上抬高，律不齐。
本病例最可能的诊断为
A. 肺梗塞
B. 高血压危象
C. 急性心肌梗死
D. 心脏神经功能症
E. 高血压脑病
Which of the following is NOT true according to the passage？
A. Researchers are trying to find out the secrets to the sleepless elite.
B. Few people qualify to be a member of the sleepless elite group.
C. Drugs are available give people a few extra hours in a day.
D. It is useful to study how to cut sleep without damaging our health.
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