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(A) They all suffer from the same drawback.
(B) This is all well and good as strategies go.
(C) In the original trials, all proved inefficient.
(D) Among the aforementioned weapons, the best are viruses.
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統計: A(111), B(309), C(163), D(150), E(0) #2099613
統計: A(111), B(309), C(163), D(150), E(0) #2099613