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问题 单项选择题

Guillain-Barré综合征与低血钾型周期性麻痹最主要的鉴别点是（）

A.瘫痪的特点

B.是否伴双侧面神经麻痹

C.血钾及血钠降低

D.血钾降低

E.脑脊液改变

答案

参考答案：D

填空题

保持路基稳定，加强轨道的弹性设计，（）等，是控制高速铁路振动污染的主要方向。
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填空题

I live in the country and my father was a farmer.51. ______
He is now forty-five year old. Because of years of 52. ______
hard work, he looks old than his age. When I was53. ______
young, he is used to tell me the importance of study. 54. ______
Father knows little about English and other subjects, 55. ______
but he usually gives me some good advices on how56. ______
to learn my lessons good. He is not only kind to me 57. ______
but also very strict in me. With his help, I’ve made 58. ______
great progress. I’ll never to forget what he taught 59. ______
me. I think my father is best father in the world. 60. ______
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