单项选择题
A.16-18℃,40% B.18-22℃,55%-60% C.20-22℃,70% D.22-24℃,80% E.24-26℃,90%
A.血钠<130mmol/L B.血钠130-150mmol/L C.血钠>150mmol/L D.血钾<3.5mmol/L E.血钾>5.5mmol/L
A.3% B.3‰ C.0.3‰ D.2% E.2‰