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【单选题】
腰椎穿刺术后的病人，必须去枕平卧4～6小时，目的是为了防止A.
穿刺部位感染
B.
低颅压性头痛
C.
穿刺部位出血
D.
脑脊液外漏
E.
颅内感染
拍照语音搜题，微信中搜索"皮皮学"使用
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A.
unsophisticated and heavy handed
B.
somber and convoluted
C.
clear and concise
D.
humorous and effective
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