血小板保存的最佳温度应为() ["2~6℃","37℃","28℃","-20℃","22±2℃"]
高钠血症的诊断标准为() ["血清钠高于140mmol/L","血清钠高于145mmol/L","血清钠高于150mmol/L","血清钠高于155mmol/L","血清钠高于160mmol/L"]
干啰音较湿啰音有的特点是() ["呼气时明显","吸气时或吸气末明显","咳嗽后可减轻或消失","性质不易变","部位恒定"]
下列呼吸音以外的附加音均只见于病理情况,除外() ["小水泡音","中水泡音","大水泡音","捻发音","哮鸣音"]
下列关于斗篷照射野器官保护描述错误的是() ["肺需要保护","喉需要保护","斗篷后野照射时,达到剂量3000cGy再保护颈脊髓","肺门要包括在照射野内","前后野需要保护肱骨头"]
空气中二氧化碳浓度为0.10%,该浓度在标准状况下的质量浓度是()
空气中二氧化碳浓度为0.10%,该浓度在标准状况下的质量浓度是()
- A1960mg/m3
- B510mg/m3
- C0.020mg/m3
- D1.96mg/m3
- E百分浓度未注明是否在标准状况无法计算