A、實(shí)際經(jīng)濟(jì)效益/預(yù)期經(jīng)濟(jì)效益下限≥1 B、實(shí)際經(jīng)濟(jì)效益/預(yù)期經(jīng)濟(jì)效益下限=1 C.實(shí)際經(jīng)濟(jì)效益/預(yù)期經(jīng)濟(jì)效益下限≤1 D、實(shí)際經(jīng)濟(jì)效益/預(yù)期經(jīng)濟(jì)效益下限<1
A、新建 B、證券投資 C、技術(shù)改造 D、改建
A、均衡性 B、社會(huì)性 C、主導(dǎo)性 D、流動(dòng)性