A.時(shí)點(diǎn)指標(biāo)和時(shí)期指標(biāo) B.靜態(tài)指標(biāo)和動(dòng)態(tài)指標(biāo) C.時(shí)期數(shù)列與時(shí)點(diǎn)數(shù)列 D.定基數(shù)列與環(huán)比數(shù)列