易引起Horner’ssyndrome的肺癌为 ["A．中心型肺癌","B．周围型肺癌","C．小细胞癌","D．肺上沟癌","E．细支气管肺泡癌"]
平静呼吸时，每次吸入或呼出的气量()平静吸气末，再尽力吸入的气量()平静呼气末，再尽力呼出的气量() ["A．余气量","B．补吸气量","C．潮气量","D．补呼气量","E．肺活量"]
试述营养素包括哪几类物质，其来源如何。
肾性骨营养不良
肺癌空洞的X线表现是() ["A．薄壁空洞，内壁光滑","B．薄壁空洞，内壁凸凹不平","C．厚壁空洞，内有液平","D．厚壁空洞，内壁凸凹不平","E．以上都不是"]
简述钾的生理功能。
