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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

904.To prevent traffic accidents, the most important practice while driving is: (A) Maintain a safe followingdistance. (B) Exceed the speed limit to reach the destination faster. (C) Pay attention only to the vehicleahead.

905.When a vehicle breaks down or is involved in an accident and stops on the road at night, how should youwarn vehicles coming from behind? (A) Stand behind the vehicle and wave both hands. (B) Only turn onthe interior light. (C) Turn on hazard warning lights and set up warning signs.

906.When a traffic accident or vehicle breakdown occurs on a freeway and you need to report and requestassistance through the dedicated customer service system, which hotline should you call? (A) 1968 APP(police reporting). (B) 1996. (C) 1999.