Cov ntawv loj Cov ntawv ceeb toom no, raug rho tawm thiab kho los ntawm Barron's, tau tshaj tawm tsis ntev los no los ntawm kev nqis peev thiab cov tuam txhab tshawb fawb. Cov ntawv ceeb toom yog ib qho piv txwv ntawm cov kws tshuaj ntsuam kev xav; lawv yuav tsum tsis txhob raug suav hais tias yog vi...