6. A violent person with sever aggressive behavior is attributed to lower level of___________
than the normal subject.
(A) androgen
(B)estrogen
(C) 5-HT
(D) dopamine
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統計: A(0), B(0), C(1), D(1), E(0) #2797677
統計: A(0), B(0), C(1), D(1), E(0) #2797677