【单选题】【消耗次数：1】
幸福方程式的提出者是（）
①
A柏拉图
②
B萨缪尔森
③
C斯宾诺莎
④
D以上都不正确
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<img class="kfformula" src="20200706/1594026574382097.png" data-latex="{NH}_{4}{NO}_{3}=N{H}^{\, \, \, +}_{4}+N{O}^{\, \, \, -\, \, }_{3}" width="243" height="53"/>
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<img class="kfformula" src="20200706/1594026574810379.png" data-latex="{Na}_{2}{CO}_{3}={Na}^{+}_{2}+C{O}^{\, \, \, \, \, 2-}_{3}" width="248" height="46"/>
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