We must treasure every minute because _____ time is _____ forever.

A．lost; losing

B．lost; lost

C．losing; losing

D．losing; lost

男性，40岁，直肠癌，B超见肝左叶孤立转移结节，余无异常，适宜的治疗是

A．乙状结肠造口术

B．根治术+肝左叶切除

C．单纯放疗

D．单纯化疗

E．Miles手术