11.下列何種藥物之鎮痛效力最強?
(A)codeine
(B)morphine
(C)hydromorphone
(D)oxymorphone
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統計: A(23), B(94), C(359), D(451), E(0) #857191
統計: A(23), B(94), C(359), D(451), E(0) #857191