国民经济评价采用的折现率是( )。
A.项目基准折现率 B.社会折现率C.行业基准折现率 D.市场折现率
参考答案:B
解析: 本题考查国民经济评价的折现率——社会折现率。
The famous artist said that his success was _____ his hard work and perseverance. [ ]
A. due to
B. next to
C. close to
D. lead to
环控系统由风系统、车站空调水系统、()组成