GRE Text Completion Question 25

Home > GRE Test > GRE Text Completion Questions

Next steps

Source: XDF

For centuries animals have been used as_____for people in experiments to assess the effects of therapeutic and other agents that might later be used in humans.

  • A benefactors
  • B companions
  • C examples
  • D precedents
  • E surrogates

Show Answer

Previous       Next