问题，是不懂什么东西而提的问题，还是什么东西出了什么问题？前者Do you have any questions? Have you any questions?后者Are there any problems? Is there anything wrong ? 全都可以简化。Any questions? Any problems? Anything wrong?
Is there a problem?Do you have any question?Any questions? Any problems? Anything wrong?例句：After my explanation，do you have any question?经过我的讲解之后，你有问题吗？
