I think you should go back to your ______ plan, which is much more practical than the present one.

[      ]

A. random

B. original

C. abstract

D. ridiculous

女性，30岁，有近8年空腹或夜间上腹部烧灼痛，进食后好转。近来自觉症状加重，6 h前病人进食后突感上腹部刀割样剧痛，很快波及全腹，伴有恶心、呕吐。体检：腹式呼吸消失，板状腹，全腹压痛、反跳痛，肝浊音界消失，移动性浊音（+），肠鸣音消失。试问：

初步诊断。