Vim yog tus nqi ntawm cov khoom siv raw, tus nqi ntawm kev sib tsoo log series yuav nce 10 ntsiab lus txij lub Ob Hlis xyoo tom ntej
Daim ntawv ceeb toom: Vim qhov nce nqi ntawm cov khoom siv hluav taws xob thiab cov cuab yeej siv tes, qee cov cuab yeej hluav taws xob yuav nce 15% tom qab cov khoom muag tiav lawm, thiab cov khoom ntim tsis txaus. Thov xyuam xim rau lub sijhawm xaj khoom rau cov neeg siv khoom.
