财务评价和国民经济评价的不同之处包括()。
A.评价目的
B.评价角度
C.效益和费用的含义和划分范围
D.采用的价格
E.评价参数
参考答案:B, C, D, E
At no time________the rules of the game.It was unfair to punish them. (2013·辽宁,26)
A.they actually broke
B.do they actually break
C.did they actually break
D.they had actually broken
描述OSI模型中网络层的主要功能。