阿摩線上測驗
6. Despite years of failed trials and relentless criticism, she remained ______, refusing to abandon her research even when funding was withdrawn.
(A) gregarious
(B) tenacious
(C) volatile
(D) lethargic
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統計： A(0), B(5), C(1), D(3), E(0) #3829464
統計： A(0), B(5), C(1), D(3), E(0) #3829464
