【单选题】现有甲、乙两个投资项目,已知甲、乙方案的收益期望值分别为10%和25%,标准离差分别为20%和49%,则( )。
【单选题】现有甲、乙两个投资项目,已知甲、乙方案的预期收益率分别为10%和25%,标准离差分别为20%和49%,则( )。
【单选题】当测温元件从一个环境迅速地转移到另一个温度不同的环境时,温度表的示度不能立即指示新的环境温度,而是逐渐趋近于新的环境温度,这种现象称为温度表的 ( ) 现象
【简答题】Unfortunately, some ofJohn’s new interests aren’t healthy, and you should not get involved in them,not even to save your friendship!
【简答题】英译中The most thrilling explanation is, unfortunately, a little defective. Some ec英译中 The most thrilling explanation is, unfortunately, a little defective. Some economists argue that powerful structur...
【单选题】Woman: Some people know a lot more than they tell.Man: Unfortunately the reverse is also true.Question: What does the man imply?
A.
Some people tend to conceal the truth.
B.
Some people are prone to tell lies.
C.
Some people are dishonest.
D.
Some people tell a lot more than they know.