考过IBT的同学，请进

和ＣＢＴ区别何在？复习有什么新方法？

过去CBT的复习资料还能用吗？

还有作文，还是原来的185道题库中的吗？

You could check the TOEFL official website to get detailed information.

I think it is the most effective approach to obtain what you want to know. Most people here are struggling with CBT now.