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What cruel national oppression policies did the Nuzhen rulers of the Jin Dynasty have?

I. Slaughtering and trafficking

2. "Prostitution and drug politics" to suppress the Han people

3. Forcing Han people to pay their debts instead of being slaves

4. Give the Han people as trophies to Nuzhen as slaves.

5. forcing the Han people to open their mouths.

Forced migration of intransitive verb "in reality"