問題詳情
17.如圖(七)所示,有一束光線由中點發射,經過乙點後垂直射至平面鏡上的戊點,則反射的光線所經過的路甲徑應為下列何者?
(A)戊→乙
(B)戊→丙
(C)戊→丁
(D)戊→己
參考答案
無參考答案
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