单项选择题
A.听眶线B.听眦线C.冠状线D.听鼻线E.定位线
A.15~20SB.25~30SC.20~30SD.30~45SE.60S以上
A.2ml/kgB.4ml/kgC.5ml/kgD.6ml/kgE.7ml/kg