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9. 某 X 光機距離靶 1 公尺處之劑量為 24 mSv/h,某人在距離靶 2 公尺作業 20分鐘,他可能接受的劑量約為多少 mSv ? (10)
問題詳情
9. 某 X 光機距離靶 1 公尺處之劑量為 24 mSv/h,某人在距離靶 2 公尺作業 20分鐘,他可能接受的劑量約為多少 mSv ? (10)
參考答案
答案:A
難度:簡單0.833333
統計:A(250),B(35),C(6),D(0),E(0)
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