41. What is the cause of “Seasonal Affective Disorder ”?
(A) Gaining appetite.
(B) Getting light treatment.
(C) Lacking light exposure.
(D) Losing weight.
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統計: A(41), B(62), C(161), D(23), E(0) #2265851
統計: A(41), B(62), C(161), D(23), E(0) #2265851