Last week I met my old friend Li Ming, but I forgot __________ him for his telephone number.[ ]

A. ask

B. asking

C. and ask

D. to ask

约60％足月儿和80％以上的早产儿可于（）。

A.生后1～2天出现黄疸

B.生后2～3天出现黄疸

C.生后2～4天出现黄疸

D.生后2～5天出现黄疸

E.生后2～6天出现黄疸