【名词&注释】
慢性肾衰竭(chronic renal failure)、尿毒症晚期(late stage of uremia)
[单选题]慢性肾衰竭尿毒症晚期是指
A. Ccr>50%,Scr<1331μmol/L B. Ccr25%~50%,Scr133~221μmol/L C. Ccr10%~25%,Scr221~4421μmol/L D. Ccr<10%,Scr>442μmol/L E. Ccr<5%,Scr>707μmol/L