道德是以善恶为标准,调节人们之间和个人与社会之间关系的行为规范。
参考答案:对
It was a pity that when we hurried to the lecture hall, the lecture_________, so we heard only the end and missed most part of it.
A.was finishing
B.has just finished
C.just finished
D.had just finished
某建设项目总投资为3500万元,估计以后每年的平均净收益为500万元,则该项目的静态回收期为()年。