以下选项中投照汤氏位，X线中心线应() ["A．向足侧倾斜45°","B．向头侧倾斜45°","C．向头侧倾斜30° ","D．向足侧倾斜30° ","E．与床面垂直"]
尿潴留
关于十二指肠溃疡穿孔，下列叙述哪些正确() ["A．X线检查右膈下均有游离气体","B．上腹突起剧痛","C．有时可引起右下腹剧痛","D．穿孔多发生在十二指肠球部后壁","E．确诊后均需手术治疗"]
影响肌肉松弛药的药动学因素包括() ["A．水、电解质和酸碱平衡","B．低温","C．年龄","D．假性胆碱酯酶异常","E．神经肌肉疾病"]
表皮的厚度约为() ["A．O.1mm","B．0.2mm","C．0.4mm","D．0.6mm"]
病理式呼吸模式
