46. What is the passage mainly about?
(A) The evolution of a human concept.
(B) The scientific foundation of a research.
(C) The codification procedures of slavery.
(D) The contributions of modern anthropology.
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統計: A(191), B(42), C(144), D(31), E(0) #1849394
統計: A(191), B(42), C(144), D(31), E(0) #1849394