Cov khoom siv
Zoesky hluav taws tua cov khoom siv dav siv hauv:
Cov vaj tsev pej xeem zoo li tsev kawm ntawv, tsev kho mob, tsev cia puav pheej, thiab tsev qiv ntawv.
01
Kev tsim khoom ib puag ncig xws li warehouses, factories, roj depots, thiab refineries.
02
Cov chaw lag luam xws li khw malls, supermarkets, tsev noj mov, thiab tsev so.
03
Cov chaw ua haujlwm suav nrog chav siv computer thiab chav sib tham.
04
Cov chaw hauv tsev nrog rau chav ua noj thiab chav pw.
05