問題詳情
19.承上題,物體經 C 點離開窗框後,最多還可以再上升多少 cm?
(A) 1.25
(B) 2.5
(C) 3.75
(D)5.25
(E) 6.5。
(A) 1.25
(B) 2.5
(C) 3.75
(D)5.25
(E) 6.5。
參考答案
答案:B
難度:非常困難0
統計:A(0),B(0),C(1),D(0),E(0)
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