24. In paragraph 5, what domain changes is the author referring to?
(A) teenagers' decreased writing skills
(B) the use of more and more digital media
(C) the increased number of standardized tests
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統計: A(1), B(0), C(0), D(0), E(0) #3373000
統計: A(1), B(0), C(0), D(0), E(0) #3373000