1.【答案】D。
解析：从1 January 20X2至31 December 20X7共计6年。The depreciation charge is calculated based on the remaining useful life at the date of the revaluation: 1,200,000/24 years = $50,000.
知识点：Depreciation accounting
2.【答案】A。
解析：The excess deprecation is the new depreciation amount of $50,000 less the old depreciation charge of $30,000 ($900,000/30 years) which is $20,000. This amount should be debited from the revaluation surplus and credited to retained earnings each year. Remember that both retained earnings and the revaluations surplus are credit balances in the trial balance.
知识点：Revaluation of non-current assets
