问题
单项选择题
男，26岁。外伤致肱骨中下1／3骨折，来院检查时发现有垂腕征，垂指畸形。最可能损伤的神经是（）
A.尺神经
B.臂丛神经
C.正中神经
D.桡神经
E.正中、尺神经同时
答案
参考答案：D
解析：桡神经在肱骨中下1／3紧贴肱骨，垂腕、垂指畸形是桡神经受损的表现。
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男，26岁。外伤致肱骨中下1／3骨折，来院检查时发现有垂腕征，垂指畸形。最可能损伤的神经是（）
A.尺神经
B.臂丛神经
C.正中神经
D.桡神经
E.正中、尺神经同时
参考答案：D
解析：桡神经在肱骨中下1／3紧贴肱骨，垂腕、垂指畸形是桡神经受损的表现。
When I first entered university, my aunt, who is an English professor, gave me a new English dictionary. I was 1 to see that it was an English English dictionary, also known as a monolingual（单语的） dictionary. 2 it was a dictionary intended for non-native learners, none of my classmates had one and, to be honest, I found it extremely 3 to use at first. I would look up words in the dictionary and still not fully understand the meaning. I was used to the 4 bilingual（双语的）dictionaries, in which the words are 5 both in English and Chinese. I really wondered why my aunt 6 to make things so difficult for me. Now, after studying English at university for three years, I 7 that monolingual dictionaries are 8 in learning a foreign language. As I found out, there is in fact often no perfect equivalence(对应) between two 9 in two language. My aunt even goes so far as to 10 that a Chinese “equivalent” can never give you the 11 meaning of a word in English! Therefore, she insisted that I read the definition(定义) of a word in a monolingual dictionary when I wanted to get a better understanding of its meaning. 12 , I have come to see what she meant. Using a monolingual dictionary for learners has helped me in another important way. This dictionary uses a(n) 13 number of words, around 2, 000, in its definitions. When I read these definitions, I am 14 exposed to the basic words and learn how they are used to explain objects and ideas. 15 this, I can express myself more easily in English.
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