用out of造句几分之几的意思

1 Nine out of ten compounds cannot penetrate the brain, research shows.研究显示，十分之九的化合物都无法深入脑部。2.Researchers have found that up to nine out of ten american bank notes bear traces of cocaine.研究者们发现每十张美洲的银行券里就有九张与可卡因有染。3.Nine out of ...