Tus nqi ntawm cov cuab yeej

Cov khoom siv cuab yeej ntawm cov cim sib txawv thiab cov ntaub ntawv muaj cov txiaj ntsig sib txawv hauv tus nqi thiab cov khoom zoo. Piv txwv li, qee qhov kawg ntawm cov khoom siv cov cuab yeej siv tau siv ntau cov ntaub ntawv ruaj khov thiab cov txheej txheem ntau dua, thiab tus nqi kuj muaj siab. Qee cov lag luam hom kev lag luam tsom rau kev them nqi thiab haum rau kev siv txhua hnub. Ib qho ntxiv, cov khoom siv cov khoom siv tau tuaj yeem ua tau raws li qhov xav tau kom tau raws li qhov kev xav tau ntawm ib puag ncig ua haujlwm tshwj xeeb.