Which of the following is not a contributory factor to thermoregulation in the preterm neonate

A．Immature central nervous system (CNS).

B．Large skin surface area.

C．Lack of subcutaneous (S. Ｃ. ) and brown fat.

D．Tendency toward capillary fragility.

当建筑物的高度超过50m或消火栓处的静水压力超过0.8MPa时，考虑麻质水龙带和普通钢管的耐压强度，应采用（）的室内消火栓给水系统。

A．无水泵和水箱

B．仅设水箱

C．分区供水

D．设消防水泵和水箱