Does anybody know the answer to

What problem made china reluctant to improve relations with the united states? apex answer

What does the country say concerning the status of free blacks living in the united states? a) they have the same rights as any other "free" people, and are full citizens. b) they have the same rights as any other "free" people, but are not properly citizens. c) they are citizens, but don't have the full rights granted to other citizens. d) they are not citizens, and have no right to petition the court.

The information box says that the han added 4,000 miles of wall.refer to the mileage scale.how can this be true?