请问申请公民，指印已经打了，有事回国，是否要重新申请？
-No. The application is still valid, but don't stay in China for more than 180 days.
如果没接到考试通知错过了怎么办？
-Ask soemone to check your mailbox for you, and if you can not come for the interview on time, just request reschedule.
可否延期考试？
-Yes.
