A.等于零 B.小于零 C.小于其相應(yīng)的總時(shí)差 D.等于其相應(yīng)的總時(shí)差
A.社會(huì)主義B.農(nóng)業(yè)社會(huì)C.科技社會(huì)D.經(jīng)濟(jì)社會(huì)
A.再生式轉(zhuǎn)型B.轉(zhuǎn)讓式轉(zhuǎn)型C.政府干預(yù)