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If you mean an Open Door ADMISSIONS policy, it means that classes are open to anyone that can benefit from the class. You are not required to have a diploma or test scores to be admitted to the college.
The open door policy
Most community colleges are open.
did the open door policy of china succeed
Open door policy
The open door policy (apex)
what was the purpose, importance and effects on the open door policy?
The Open Door Policy was found in the year 1899.
open door policy
Here's two: The Open Door Policy was proposed in 1899. The Open Door Policy stated that no single country should have a monopoly on trade with China. Hope I helped. :3
China
The Open Door Policy that was imposed on China was developed by James Hay, the US Secretary of State in in the Open Door Notes of September-November 1899.