阿摩線上測驗
9. The ____ strain of flu spread rapidly throughout the community, causing widespread illness and concern.
(A) petulant
(B) tenacious
(C) forlorn
(D) virulent
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統計： A(2), B(2), C(2), D(15), E(0) #3432235
統計： A(2), B(2), C(2), D(15), E(0) #3432235
