46.What is the primary focus of the passage?
(A) The history of vaccine development and its impact on global health
(B) The decline in public trust in vaccines and the factors contributing to vaccine hesitancy
(C) The effectiveness of COVID-19 vaccines in preventing deaths worldwide
(D) The role of social media in spreading medical misinformation and its impact on vaccine development
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統計: A(1), B(7), C(0), D(0), E(0) #3427204
統計: A(1), B(7), C(0), D(0), E(0) #3427204