這使師資匱乏的問(wèn)題更為嚴(yán)重.This makes the teacher shortage even more critical.自然資源匱乏的唯一經(jīng)濟(jì)判斷是成本, 而不是實(shí)物的稀缺.Costs, not physical scarcity, are the only economic test of a shortage of natural resources.失業(yè)和匱乏的幽靈一直在對(duì)他們作祟是不能否認(rèn)的.There is no d...