17.在 AK 內生成長模型中，經濟能夠持續成長的主要原因是： (A)技術進步為外生 (B)資本報酬不遞減 (C)人口持續成長 (D)折舊率為零

1. Which of the following statements is (are) true?I. O and F have the same number of neutrons.II. C and N are isotopes of each other because their mass numbers are the same.III. O2– has the same number of electrons as Ne.(A) I only (B) II only (C) III only (D) I and II only (E) I and III only