The Useful Sentence In Chinese For The End Of Your Presentation

When you are at the end of your presentation, how to say equivalent to “Are there any questions” In Chinese? I will teach you the simplest possible approach.

1.”有什么问题吗（you shen me wen ti ma）” means :Are there any questions?

2.”有问题请随便提问（you wen ti qing sui bian ti wen）” means: Please feel free to ask me if have any question.

3.”我的演讲结束了，谢谢大家(wo de yan jiang jie shu le, xie xie da jia)” means: I accomplish my presentation , Thanks a lot.