問題詳情
50.球體排開水的重量,應該是多少gw?
(A)1.25
(B)10
(C)40
(D)50。
(A)1.25
(B)10
(C)40
(D)50。
參考答案
答案:C
難度:計算中-1
書單:沒有書單,新增
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