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【单选题】
有关高血压病人术前评估和准备哪项正确A.
术前一天应停用所有抗高血压药
B.
麻醉危险性主要决定于重要器官是否受累以及其受累的严重程度
C.
术前血压应降至正常才能手术
D.
收缩压升高比舒张压升高危害小
E.
术前宜使用中枢性降压药控制血压
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