Is the Han government's civil service system similar to that of the United States?

Yes.

Explanation:

Yes, the Han government's civil service system similar to the system of United States of America because in the Han government, the civil service system is responsible for running of the country while in United States of America, the main aim or purpose of civil service system is to helps the government to run the country according to the present legislation. So both have the same civil service system.

geography

this is because warmer climates often don't get people sick from the flu and regions where it was often colder more people received the flu. hope this if you need more reasoning i am here to