1.SHAPE Zoo li hlau, rau cov ntawv tsis sib xws, tawv thiab nkig, ib sab ci, ib sab ntxhib, nyiaj-dawb mus rau xim av, ua cov hmoov yog nyiaj-grey;yooj yim rau oxidise hauv huab cua, thaum ntsib nrog dilute acid yuav yaj thiab hloov cov hydrogen, me ntsis siab dua cov ...
Nyeem ntxiv