阿摩線上測驗 登入

最新科目

最新試卷

最新試題

最新申論題

最新課程

最新主題筆記

最新討論

76 距 γ 點射源外某處之曝露率為 12 個單位,若要降至 5 個單位,假設增建因數為 1.0,則需在兩者之 間置入約多少個半值層屏蔽? (A) 2.69 (B) 1.93 (C) 1.54 (D) 1.26

71.「游離輻射防護安全標準」規定,除搶救生命外之緊急曝露人員,劑量儘可能不超過多少? (A)50毫西弗 (B) 100毫西弗 (C)250毫西弗 (D)500毫西弗

71.依據游離輻射防護安全標準,有關緊急曝露人員之劑量規定,下列何者正確? (A)為搶救生命,劑量限値為單一年劑量限度的5倍 (B)為防止嚴重危害,劑量限値為單一年劑量限度之20倍 (C)緊急曝露所接受之劑量,應與職業曝露之劑量合併記錄 (D)為減少大量集體有效劑量,劑量限値為單一劑量限度之2倍

20.貨幣需求的投資組合理論 (portfolio theories) 強調貨幣的功用為: (A)交易媒介 (B)計價單位 (C)價值儲存 (D)延遞支付

21.政府有債務融資卻實施減稅政策,導致家戶單位的儲蓄不減反增,係為: (A)李嘉圖等量 (Ricardian equivalence) 假說 (B)恆常所得假說 (permanent-income hypothesis) (C)生命週期 (life-cycle) 模型 (D)課稅平滑 (tax smoothing) 理論

642.When a vehicle breaks down and cannot be driven, it should be moved to a location that does notobstruct traffic. Regarding the handling of breakdown warning signs before or after the vehicle is moved,which of the following is incorrect? (A) On roads with a speed limit of 40 km/h or below, the sign shouldbe placed on the road surface 100 meters behind the vehicle; placement at an appropriate position infront of the vehicle may be set as needed. (B) On roads with a speed limit exceeding 40 km/h, the signshould be placed on the road surface between 30 and 100 meters behind the vehicle; placement at anappropriate position in front of the vehicle may be set as needed. (C) On congested road sections, thesign should be hung on the rear of the vehicle; placement at an appropriate position in front of the vehiclemay be set as needed.