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Nurselady Nurselady
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Posts: 796
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6 years ago
Analysis of the stone artifacts from Zhoukoudian indicate that the tools from
 
  a. the Final Stage are large and crudely made.
  b. the Earliest Stage are made from flint and fine-grained quartz.
  c. all stages are identical to each other.
  d. the Middle Stage are heavier and larger than the previous stage.
  e. the Final Stage are small and the tool materials are of better quality than the previous stages.
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