单项选择题

A.婴儿每日需水量150ml/kg,以后每2岁减去20ml/kg
B.婴儿每日需水量150ml/kg,以后每3岁减去20ml/kg
C.婴儿每日需水量150ml/kg,以后每2岁减去25ml/kg
D.婴儿每日需水量150ml/kg,以后每3岁减去25ml/kg
E.婴儿每日需水量150ml/kg,以后每4岁减去30ml/kg