5. The new vaccine was banned by the Food and Drug Administration due to its ______ fatal side effects.
(A) potentially
(B) delicately
(C) ambiguously
(D) optionally
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統計: A(135), B(23), C(19), D(12), E(0) #3362483
統計: A(135), B(23), C(19), D(12), E(0) #3362483