Any foreign national who has traveled within China in the last 14 days will not be allowed to enter the United States, according to a proclamation from President Trump. The action is to prevent the spread of the new coronavirus, said US Secretary of Health and Human Services Alex Aza
而且现在海关都是刷护照
是整个中国。
In theory, probably ok
这个没问题吧,过了要求的隔离期了。护照上应该离开中国的章,那就知道离境时间了