细菌的生殖方式是
A：孢子生殖
B：分裂生殖
C：出芽生殖
D：有性生殖
一Don't worry about your trip to the US. I'll be with you all the way.
一OK. Thank you. It'll be my first time to travel abroad.
下列关于沧海桑田变迁的叙述错误的是（ ）
创造玛雅文明的是（ ）
