They divided themselves into three groups ______ age.

[      ]

A. according to

B. owing to

C. thanks to

D. due to

TT延长，可被甲苯胺蓝纠正，提示为()

A．低(无)纤维蛋白原血症

B．异常纤维蛋白原病

C．因子Ⅱ缺乏

D．有FDP存在

E．有肝素或类肝素物质存在