男，80岁，有高血压史10年。突发睡眠增多，口角歪，右上下肢无力入院。查体：左上睑下垂，左眼向上视、下视及内收不完全。右中枢性面舌瘫，右上下肢肌力O级，双侧Babinski征阳性。右面及右半身痛觉减退。头MRI示左中脑及双侧丘脑长T1长T2信号。该病人最可能的诊断是（）
A.脑出血
B.基底动脉尖综合征
C.Wallenberg综合征
D.蛛网膜下腔出血
E.TIA
参考答案：B
解析：基底动脉尖综合征。基底动脉尖部由戚对的小脑上动脉、大脑后动脉加上基底动脉顶端组成，供应中脑、丘脑、小脑上部、颞叶及枕叶。其主要临床表现为：眼球运动异常、意识障碍、对侧偏盲或皮质盲、记忆障碍。该患者存在眼球运动异常及意识障碍、MRI示中脑及丘脑低信号影，符合基底动脉尖综合征。
Dear Peter, I hope everything is going well with you ! I’m glad __41__ your letter asking for my __42__ on how to learn Chinese well. Here are__43__suggestions. Firstly, you can take part__44__a Chinese course. There you can learn from the teachers and practice with your classmates as possible as you can. Secondly, __45__is important to read some newspapers about__46__and watch Chinese TV programs whenever possible. Besides, it is also a good idea__47__and sing Chinese songs, it can improve your oral Chinese and by__48__so, you’ll learn and remember Chinese words__49__ I think__50__to improve your Chinese is by making more Chinese friends. You can chat and do something__51__them together.__52__you want to learn it, they will tell you a lot about China and help you learn Chinese. I believe you can learn Chinese__53__. Try__54__to me in Chinese next time. Good luck to you! Best__55__! Yours, Li Hua
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