第三題： 甲旅行社籌辦福壽山賞櫻團，食宿交通均由甲旅行社負責提供﹔A知悉後欣然參加為團 員，並依約交付旅遊費用於甲。所有交通行程，甲則委託乙遊覽公司運送旅客。旅遊日程即 將結束，賞櫻完畢下山，乙公司遊覽車於行駛途中，煞車突然失靈（煞車何以失靈，經查原 因不明），遊覽車翻覆於路旁田野（遊覽車司機於維護車輛及採取應變措施，均無過失）， A額頭因而受傷，雙手亦為之骨折，經送醫住院治療數週，始告痊癒。請就上述敘事，依民 法規定解答下列問題：

一、甲、乙、丙三人各有3分之1應有部分分別共有A地,甲並已以其應有部分供丁設定抵押權,以擔保丁對甲之權。試問:

 (二)甲、乙三人協識分割不成後,由甲向法院請求裁判分割時,丁已參加該分割訴訟。分割判決之結果,由甲分得A地5分之1、乙丙各分得A 地5分之2；甲不足部分，另由乙丙支付償金予甲時，甲、乙、丙、丁 間之法律關係如何?(8%)

四、請說明（每小題 5 分，共 20 分）

一、賴德布魯赫(Radbruch,Gusta)曾经在其所著《法督學》中,針對「規範」(norm)與「指令」 (imperative),提出下列的陳述, "It may best be illustrated by any sentence combining a norm with an imperative, when normative contents appear in imperative form. 'Do your duty!' Let us separate the meaning of that sentence from what carries it, the declared from the declaration. We then get, on the one hand, an existential structure, definite in time and space, brought about and effective by way of causation, a sequence of tones which sounds here and now, originating in a certain psychological process in the speaker and producing another such process in the listener er. On the other hand, we get a nontemporal, nonspatial, noncausal content of significance, a moral necessity which is valid independently of the place, the time, and the effectiveness of that declaration." (From Gustav Radbruch, Legai Philosophy, in Lask, E., Radbruch, G., & Dabin, L. (1950). The Legal Philosophies of losk, Rodbruch, and Dabin. Translated by Kurt Wilk, Harvard University Press, 43-224, 83.) 請回答下列問題：