阿摩線上測驗
26. The Critical Period Hypothesis believes that language acquisition needs to be completed by _________ .
(A) age 20
(B) early childhood
(C) age 30
(D) puberty
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統計： A(1), B(13), C(1), D(5), E(0) #3449309
統計： A(1), B(13), C(1), D(5), E(0) #3449309
