40. What is the main idea of the passage?
(A) Youth activism faces many restrictions.
(B) Online tools play a key role in climate activism.
(C) Adults criticize student protests.
(D) Science is misused online.
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統計: A(7), B(31), C(1), D(1), E(0) #3493883
統計: A(7), B(31), C(1), D(1), E(0) #3493883