20. Not only ________ attack the memory, but it also attacks visualization.
(A) does Alzheimer’s disease
(B) Alzheimer’s disease does
(C) Alzheimer’s disease did
(D) is Alzheimer’s disease
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統計: A(244), B(81), C(12), D(11), E(0) #2430769
統計: A(244), B(81), C(12), D(11), E(0) #2430769