A.CT B.MRI C.DSA D.腰穿 E.TCD
A.出發(fā)點(diǎn)B.維持點(diǎn)C.立足點(diǎn)D.基礎(chǔ)點(diǎn)
A.經(jīng)濟(jì)B.安全C.發(fā)展D.主權(quán)