Does this come from a book
<span>Primary reinforcer are naturally and occurring and do not require an individual to learn any significant method or process in order to work.They are backed by an evolutionary basis.They occur since beginning of time and aid survival species.</span>
Magnetic Force? I think aha. Almost positive.
The Open Door policy was written in 1899. The U.S. was interested in acquiring cheaper goods (mainly cotton) from foreign markets.
John Hays wrote this policy to protect the privileges among countries that were trading with China. He wanted countries to have equal access to ports open to trade in China, and to avoid a monopoly.
The first note in the Open Door Policy said that (1) each great power should maintain free access to a treaty port or to any other vested interest within its sphere.
