5. Due to the _____ nature of the late-onset Alzheimer’s, scientists have not yet fully
comprehended the sign of early development and often have difficulty identifying the
onset of the disease.
(A) sardonic
(B) synaptic
(C) seraphic
(D) sporadic
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統計: A(10), B(18), C(7), D(40), E(0) #3103822
統計: A(10), B(18), C(7), D(40), E(0) #3103822