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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

9. 當 A 國對 B 國的某產品增課進口關稅時,則: (A) A 國的消費者剩餘增加 (B) A 國的生產者剩餘增加 (C) A 國的消費者與生產者之總剩餘增加 (D) A 國的消費者與生產者之總剩餘不變

625.A large vehicle is traveling inside a tunnel where the vehicle ahead is moving slowly and there are noobvious prohibition signs. Which of the following is correct? (A) Should maintain lane position and keep asafe following distance. (B) May change lanes and overtake at any time. (C) May briefly accelerate toNo. Ans Questionovertake, then return to the original lane.

626.When a large vehicle makes a right turn, what is the most correct operation to avoid accidents caused bythe inner wheel difference? (A) When turning right, the vehicle should activate the turn signal 30 metersbefore the intersection, move into the outer lane, right-turn lane, or slow lane, and then make the rightturn after reaching the intersection. (B) Hug the right side and turn directly to shorten the distance. (C)Accelerate through the intersection to avoid obstructing traffic.