用以调整人们之间及个人与社会之间的行为规范是()
A.道德的本质
B.道德评价的标准
C.道德评价方式
D.道德的特点
E.道德的主要功能
参考答案:E
用反例证明“有两边和其中一边的对角对应相等的两个三角形全等”。
When workers agree to forego leisure to undertake labor and receive wages, the term that is applied in labor supply economics is the:()
A. substitution effect.
B. income effect.
C. marginal rate of substitution.