数列{an}是等差数列,若a1+1,a3+2,a5+3构成公比为q的等比数列,则q=( )
A:1
B:2
C:3
D:4
- It's reported that the Oriental Star Cruises (“东方之星”号游船)sank June 1st, 2015.
- I'm sorry to hear that.