题目内容

女性，23岁，颅内动脉瘤，脑造影显示动脉瘤位于Willis环前部，此病人术前最重要的练习是( )

A. 深呼吸
B. 咳嗽排痰
C. 俯卧位
D. 颈仰卧位
E. 压迫颈动脉

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A. oil crisis
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