A.是時(shí)期指標(biāo) B.是時(shí)點(diǎn)指標(biāo) C.前者是時(shí)期指標(biāo),后者是時(shí)點(diǎn)指標(biāo) D.前者是時(shí)點(diǎn)指標(biāo),后者是時(shí)期指標(biāo)
A.絕對數(shù)動(dòng)態(tài)數(shù)列 B.絕對數(shù)時(shí)點(diǎn)數(shù)列 C.相對數(shù)動(dòng)態(tài)數(shù)列 D.平均數(shù)動(dòng)態(tài)數(shù)列