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- 2021-5-6
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1, a general idea about archaeological discoveries and a important discovery of a set of remains of he Australopithecus afarensis species
2, How important the new discovery is.
1, C , take me a while to consider about B. Finally cannot "previous theories of development"
2, D , that guy talks about the importance of the finding
3, C , seems "location" is the least important thing of the finding.
4, C , not sure about C/D, i think both C and D are right.
okay, "hyoid bone has dramatically affected concepts of the origin of speech". It seems that it does not mean "hyoid bone" is neccessary for speech.
5, D , new finding changes the accepted ideas
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