题目内容

降低潮气量而不增加呼吸频率的吸入麻醉药是

A. 恩氟烷
B. 地氟烷
C. 七氟烷
D. 异氟烷

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麻醉期间影响肺通气的因素有哪些

A. 常用的吸入麻醉药和静脉麻醉药都是抑制肺通气，其抑制程度随药物种类和剂量大小而异，随剂量增加抑制程度增加
B. 体位
C. 呼吸道梗阻
D. 吸入麻醉装置故障，增加呼吸道阻力
E. 全身麻醉使潮气量减少

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零件的机械加工精度包括尺寸精度、形状精度、相互位置精度和表面粗糙度。

A. 对
B. 错