30.假定A为自变量,B为因变量,弹性的数学表达式为( ) -题库考试答案搜索网

30.假定A为自变量,B为因变量,弹性的数学表达式为( )

单选题

2021-07-17 23:43

A、<span style="font-size: 16.8px; line-height: 25.2px; background-color: rgb(255, 255, 255);">E=（ΔB/ΔA）·（A/B）</span>
B、<span style="font-size: 16.8px; line-height: 25.2px; background-color: rgb(255, 255, 255);">E=（ΔA/ΔB）·（B / A） </span>
C、<span style="font-size: 16.8px; line-height: 25.2px; background-color: rgb(255, 255, 255);">E=（ΔB/ B）·（ΔA/A）</span>
D、<span style="font-size: 16.8px; line-height: 25.2px; background-color: rgb(255, 255, 255);">E=（ B /ΔB）·（A/ΔA）</span>

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正确答案

A

试题解析

标签：工程管理专升本西方经济学 2020年第二学期补考

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