問題詳情

24) The nucleus of an atom contains _____.
(A)protons and neutrons
(B)neutrons and electrons
(C)protons and electrons
(D)protons, neutrons, and electrons

參考答案

答案：A
難度：非常困難0.142857
統計：A(1),B(1),C(1),D(4),E(0)