問題詳情
4 長度 1.5 m 且具正方形橫斷面（邊長為 50 mm）之桿件，其長細比為何？
(A) 30
(B) 88
(C) 90
(D) 104
(A) 30
(B) 88
(C) 90
(D) 104
參考答案
無參考答案
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