1973年在英国铁桥市成立的国际工业遗产保护协 会是工业遗产保护的里程碑。

单项选择题What kind of palace is the Forbidden City?A. summer palceB. world's best-preserved and largest royal palaceC. international palaceD. neglected palace

多项选择题The common methods to calculate depreciation are_____. A. sum of years method B. double declining balance method C. average service life method D. workload method