Do you have an American green card and China nationality?

You have an American green card and China citizenship.

American green card refers to the American permanent resident card, which is an identity document used to prove that foreigners have the status of permanent residents in the United States. However, it is China citizens who get the green card in the United States. Green card holders are foreigners who have neither American citizenship nor American citizenship, but they basically enjoy the same treatment as their own nationals in the United States.

When entering the United States, permanent residents must use a valid immigrant visa and a valid passport of their home country, otherwise they are not allowed to enter the United States. After having an American green card, as long as you leave the United States for less than one year, the green card itself can be regarded as a valid entry immigrant visa, and you don't need to apply for a visa at the American embassy or consulate. If you leave the United States for more than one year, you must apply for a visa to return to the United States before leaving the country. As a valid immigrant visa for entry, the validity of a return visa to the United States is up to two years.

American geographical environment

The United States is located in central North America, including Alaska in the northwest of North America and Hawaii in the central Pacific Ocean. It borders Canada in the north, the Gulf of Mexico in the south, the Pacific Ocean in the west and the Atlantic Ocean in the east. The land area is 9.37 million square kilometers, with a local length of 4,500 kilometers from east to west, 2,700 kilometers from north to south and a coastline of 22,700 kilometers.

The terrain of the United States is changeable, with high terrain in the west and low terrain in the east. There are coastal plains on the east coast, which are wide in the south and narrow in the north, extending to New Jersey and Long Island, and there are also some glacial sedimentary plains. Behind the coastal plain is a hilly area with undulating terrain, extending all the way to the Appalachian Mountains in North Carolina and New Hampshire, with an altitude of 1, 830 meters.

Reference to the above content: Baidu Encyclopedia-USA