49. Which of the following best describes the overall trend in weather events according to the passage?
(A) They are becoming less severe
(B) They remain unchanged
(C) Their frequency and severity are increasing
(D) They are unpredictable and random
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統計: A(0), B(0), C(65), D(8), E(0) #3374411
統計: A(0), B(0), C(65), D(8), E(0) #3374411