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試卷名稱：111年 - 111 高雄醫學大學_學士後醫學系招生考試：物理及化學#109923
年份：111年
科目：學士後西醫物理及化學
6. The figure shows four situations in which a source of sound S and a detector D are either moving
or stationary. The arrows indicate the directions of motion. The speeds (when not zero) are all the
same. (Note that the detector in situation ③ is stationary). Rank the situations according to the
apparent frequency of the source, lowest to highest.
(A) ①,②,③,④
(B) ④,③,②,①
(C) ①,③,②,④
(D) ②,①,④,③
(E) ②,①,③,④
