6．歷年產(chǎn)值計(jì)劃完成程度指標(biāo)數(shù)列是(      )
A．時(shí)期數(shù)列                                              B．時(shí)點(diǎn)數(shù)列
C．相對數(shù)時(shí)間數(shù)列                                    D．平均數(shù)時(shí)間數(shù)列
7．把一個(gè)班級學(xué)生先按性別分組，再按年齡分組，這種分組是(      )
A．按品質(zhì)標(biāo)志分組                                    B．按數(shù)量標(biāo)志分組
C．簡單分組                                              D．復(fù)合分組
8．對某地工業(yè)設(shè)備普查時(shí)，調(diào)查對象是(      )
A．該地全部工業(yè)設(shè)備                                B．全部工業(yè)企業(yè)
C．每個(gè)工業(yè)企業(yè)                                       D．每臺工業(yè)設(shè)備
9．資金利稅率屬于(      )
A．品質(zhì)標(biāo)志                                              B．?dāng)?shù)量標(biāo)志
C．質(zhì)量指標(biāo)                                              D．?dāng)?shù)量指標(biāo)
10．全國工業(yè)普查的總體是(      )
A．全國                                                     B．全國工業(yè)企業(yè)
C．每個(gè)工業(yè)企業(yè)                                       D．全國工業(yè)企業(yè)數(shù)