I first met Lisa three years ago. She ________ at a radio shop at the time.[      ]

A. was working

B. has worked

C. had worked

D. had been working

某患者于街上被汽车撞倒，神志不清10余分钟，醒后不知自己如何来到街上()
某患者脑出血昏迷10天，醒后不知如何来到医院()
某患者将抗美援朝的经历说成是今年发生的事()
某患者发病后被送到从未到过的医院，但其认为以前来过，对医师们感到很熟()

A．顺行性遗忘

B．错构

C．似曾相识

D．逆行性遗忘