永续年金是指收益期无限长情况下，已知收益年金和年利率，求收益现值。
A. 对
B. 错
通过现值系数可以求出计算期末的终值。
A. 对
B. 错
A well-worded central idea should ___
A. be expressed in a full sentence
B. be expressed in a declarative sentence.
C. avoid figurative language.
D. be specific
An outline ___
A. Is where the main points that we want to cover are listed and organized
B. is a detailed map of your speech
C. includes main points
D. includes supporting materials
微信支付 
支付宝支付