【单选题】Alexandra consumes only caviar and champagne, but she does have a limited income of $400. Her current consumption choice is 5 ounces of caviar, at a price of $50 per ounce, and 6 bottles of champagne...
A.
her total utility will increase by 150 unit
B.
her total utility will decrease by 150 units
C.
her total utility will increase by 100 units
D.
her total utility will increase by 50 units
【简答题】分析队列研究资料时,可采用哪些率的指标?
【单选题】When Aunt Alexandra hosts a missionary group from church at her home, Scout
A.
helps serve refreshments
C.
gains a new understanding of Aunt Alexandra
【单选题】面电荷分布和该点的曲率半径的关系是()。