单项选择题
A.血清钙>2.5mmol/L B.血清钙>3.5mmol/L C.血清钙>42mmol/L D.血清钙>4.5mmol/L E.血清钙>5.5mmol/L
A.25g B.29g C.32g D.35g E.40g
A.1800ml B.2400ml C.3000ml D.3200ml E.3540ml