原因是我们上传的App屏幕快照并没有在App内使用，方案就是把这个设置成启动的欢迎界面或者替换成真正的应用截图即可
原文如下：
Guideline 2.3.3 - Performance - Accurate Metadata
We noticed that your screenshots do not sufficiently reflect your app in use.
Specifically, your screenshots for iPad show your app in use in iPad.
Please see attached screenshots for details.
It would be appropriate to provide screenshots that reflect your app in use in iPad.
Next Steps
To resolve this issue, please revise your screenshots to ensure that they accurately reflect the app in use. For resources on creating great screenshots for the App Store, you may want to review the App Store Product Page information available on the Apple developer portal.
Please ensure you have made any screenshot modifications using Media Manager. You should confirm your app looks and behaves identically in all languages and on all supported devices. Learn how to use Media Manager to add custom screenshots for each display size and localization.
Since your iTunes Connect status is Metadata Rejected, we do NOT require a new binary. To revise the metadata, visit iTunes Connect to select your app and revise the desired metadata values. Once you’ve completed all changes, reply to this message in Resolution Center and we will continue the review.
NOTE: Please be sure to make any metadata changes to all app localizations by selecting each specific localization and making appropriate changes.