单项选择题

A.空腹或餐前血糖4.4~6.1mmol/L、餐后2h或随机血糖6.1~7.8mmol/L
B.空腹或餐前血糖6.1~7.8mmol/L、餐后2h或随机血糖7.8~10.0mmol/L
C.空腹或餐前血糖7.8~10.0mmol/L、餐后2h或随机血糖7.8~13.9mmol/L
D.空腹或餐前血糖4.4~7.8mmol/L、餐后2h或随机血糖7.8~13.9mmol/L