A.一個(gè)月 B.一周 C.三天 D.24小時(shí)
A.話(huà)務(wù)量經(jīng)營(yíng) B.流量經(jīng)營(yíng) C.話(huà)務(wù)量和流量經(jīng)營(yíng)并重 D.數(shù)據(jù)經(jīng)營(yíng)
A.3 B.4 C.5 D.6