阿摩線上測驗
15. Late evening exposure to LED light from handheld devices ______ disruption of sleep wake cycles and cognitive performance during the day.
(A) linking to
(B) are linked to
(C) been linked to
(D) has been linked to
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統計： A(0), B(1), C(0), D(0), E(0) #3451319
統計： A(0), B(1), C(0), D(0), E(0) #3451319
