徵收補償標準 一般正常交易價格 公告土地現值 加成補償 地價評議委員會 立法原意解釋 文義解釋 最高行政法院 土地徵收條例 判斷餘地 Takings compensation standard Normal transaction price Announced current land value Extra proportion of announced current land value as additional compensation Land evaluation committee Original intent Textaul meanting Supreme administrative cort Land condemmation act Beurteilungsspielraum Margin of appreciation