thaum koj xaj cov hniav nyiaj hniav kub zoo nkauj los ntawm lub hoobkas, ib qho tseem ceeb tshaj yog tias cov nyiaj ntau dua 92.5%, cov neeg siv nyiam yuav cov hniav nyiaj hniav kub pheej yig tshaj, tab sis rau cov hniav nyiaj hniav kub zoo nkauj, raws li cov hniav nyiaj hniav kub zoo nkauj ua khoom, peb cov lus pom zoo yog, tus nqi tsim nyog yuav yog qhov tseem ceeb tshaj plaws. zoo li qee lub tsev haujlwm, cov nyiaj uas lawv siv yuav tsis yog 925 nyiaj, yog li tus nqi qis …

Rau peb, txhua yam ntawm peb cov hniav nyiaj hniav kub zoo peb cog lus tsawg kawg 92.5% cov ntsiab lus nyiaj.