▁too , ▁so ▁sometimes ▁the ▁abbre viation ▁" C J K V " ▁is ▁used . ▁This ▁system ▁was ▁replaced ▁by ▁the ▁Latin - based ▁Vietnam ese ▁alphabet ▁in ▁the ▁ 1 9 2 0 s . ▁ ▁C J K ▁Un ified ▁Ide ograph s ▁blocks ▁ ▁C J K ▁Un ified ▁Ide ograph s ▁The ▁basic ▁block ▁named ▁C J K ▁Un ified ▁Ide ograph s ▁( 4 E 0 0 – 9 FF F ) ▁contains ▁ 2 0 , 9 8 9 ▁basic ▁Chinese ▁characters ▁in ▁the ▁range ▁U + 4 E 0 0 ▁through ▁U + 9 FF C . ▁The ▁block ▁not ▁only ▁includes ▁characters ▁used ▁in ▁the ▁Chinese ▁writing ▁system ▁but ▁also ▁kan ji ▁used ▁in ▁the ▁Japanese ▁writing ▁system ▁and ▁han ja , ▁whose ▁use ▁is ▁dimin ishing ▁in ▁Korea . ▁Many ▁characters ▁in ▁this ▁block ▁are ▁used ▁in ▁all ▁three ▁writing ▁systems , ▁while ▁others ▁are ▁in ▁only ▁one ▁or ▁two ▁of ▁the ▁three . ▁Chinese ▁characters ▁are ▁also ▁used ▁in ▁Vietnam ' s ▁N ô m ▁script ▁( now ▁ob sole te ). ▁The ▁first ▁ 2 0 , 9 0 2 ▁characters ▁in ▁the ▁block ▁are ▁arranged ▁according ▁to ▁the ▁K ang xi ▁Dictionary ▁ordering ▁of ▁radical s . ▁In ▁this ▁system ▁the ▁characters ▁written ▁with ▁the ▁few est ▁stro kes ▁are ▁listed ▁first . ▁The ▁remaining ▁characters ▁were ▁added ▁later , ▁and ▁so ▁are ▁not ▁in ▁radical ▁order . ▁ ▁The ▁block ▁is ▁the ▁result ▁of ▁Han ▁un ification , ▁which