第23题: [单项选择]In practice, which of the following is the most important feature that makes an object an antique A. It has to be 100 years old. B. It has to be at least 20 years old. C. It has to be beautiful and decorative. D. It has to have aesthetic or historic value. 参考答案:D 答案解析:第2段讲古董的美学价值,第3段讲其历史价值,并且第1段3、4行提到“aesthetic or historic merit”,故选D。