75.下列何種材料對游離輻射屏蔽效果最好？(A)鉛(B)鐵(C)鋼(D)石頭。

問題詳情

75.下列何種材料對游離輻射屏蔽效果最好？
(A)鉛
(B)鐵
(C)鋼
(D)石頭。

參考答案

答案：A
難度：簡單0.866667
統計：A(13),B(0),C(2),D(0),E(0)

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