- Hi, Liu Tao. I didn't see you at the party.
- Oh. I ____ (get) ready for the maths exam.
_____ Ann like noodles?
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=( )