42. The underlined word ulcer in the second paragraph refers to a particular kind of
(A) mental illness.
(B) physical problem.
(C) spiritual healing.
(D) physiological treatment.
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統計: A(7), B(23), C(3), D(3), E(0) #629311
統計: A(7), B(23), C(3), D(3), E(0) #629311