Why did the Hellenistic era allow conqurer lands keep some of there culture?

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What are three uses of the yangtze river by the people living among the river

The procedures for reporting potential unanticipated problems involving risk to subjects or others to the irb are: stated in the human subject protection regulations, but not in the drug or device regulationsincluded in the consent processdetermined by research staffdetermined by the institution in its written policies and procedures

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