阿摩線上測驗
32 Older adults and people of any age who have serious underlying medical conditions may be at higher risk for more
serious _______from COVID-19.
(A) applications
(B) complications
(C) duplications
(D) implications
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統計： A(42), B(114), C(41), D(59), E(0) #2919859
統計： A(42), B(114), C(41), D(59), E(0) #2919859
