What is the document that created a strong national government and still exsist?

What is the relationship between surface winds in the northern and southern hemisphere?

In the spring of 1989, thousands of protesters gathered in tiananmen square in beijing, china. they rallied around a plaster statue that resembled the statue of liberty which they called “the goddess of democracy.” these protestors were seeking a) united states assistance in gaining better health care. b) economic reforms which would allow more chinese exports. c) the boycott of the future olympic games scheduled for beijing. d) political reforms to allow more freedom of speech and political representation.

Which groups of people most directly benefited from song innovations in the song dynasty‘s open border policy?