从“大生纱厂”“实业救国”“清末状元”这些关键词中,你能联想到( )
已知等比数列{an}的前n项和为Sn,若S2n=4(a1+a3+a5+…+a2n-1),a1a2a3=27,则a6=( )
It is impossible to get there on time.