Hauv 7 hnub tom qab tau txais koj cov nyiaj them ua ntej lossis L / C.
T / T lossis L / C lossis O / A
Feem ntau, peb muab Daim Ntawv Qhia Ua Lag Luam, Cov Ntawv Sau Tawm, Cov nqi thauj khoom, COA, Daim ntawv pov thawj kev noj qab haus huv thiab keeb kwm daim ntawv pov thawj.PLS qhia rau peb paub yog tias koj cov kev lag luam muaj qee yam tshwj xeeb.
Ua siab zoo xa peb koj chaw nyob, peb zoo siab los muab koj cov qauv