40. It can be inferred from the passage that ethological theory assumes that
(A) to learn about human behavior only human subjects should be studied
(B) failure to imprint has no influence on inteligence
(C) the notion of critical periods applies only to animals
(D) there are similarities between animal and human behavior

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統計： A(1), B(1), C(1), D(6), E(0) #803539