It is said that potato chips in KFC _____ by mistake about one hundred years ago. [ ]

A. were invented

B. invented

C. was invented

男，45岁，肝炎病史20余年，近2月来出现右侧季肋部持续胀痛，伴厌食、乏力和腹胀。查体：右侧肋缘下可触及到肿大的肝脏，质地坚硬，边缘不规则；AFP>1000μg/L。

有确定诊断意义的检查是（）

A.肝功能检查

B.CT

C.MRI

D.肝穿刺针吸细胞学检查

E.选择性肝动脉造影