21. Which of the following topics best describes the passage?
(A)The Benefits of Forest Bathing.
(B)How Phytoncides Improve Health.
(C)A Green Therapy for Hospital Patients.
(D)Attention Regained: A Walk among Trees.
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統計: A(761), B(214), C(131), D(65), E(0) #980405
統計: A(761), B(214), C(131), D(65), E(0) #980405