The United States is one of the three developed countries who have not given China the treatment of Generalized System of Preference (GSP)among the thirty-one preference-giving countries in the world.

But the present acts in our country usually endow the female with some special rights,namely the preferential treatment,the typical case is the act of guaranteeing female rights,which contains a kind of opportunity of constitutional judgment from the academic perspective.

The theory and practice of international investment shows that the national treatment is no less than the treatment to the host country s investment, and is not supposed to blackball some preferential treatment(super-national treatment) the host country provides to the foreign investment.