题目:
图中给出氢原子最低的四个能级,氢原子在这些能级之间跃迁所辐射的光子的频率最多有几种?其中最小的频率等于多少?(保留两位有效数字)
答案:
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0806/277019c96aa450dde37913d855da1b26.html
下面是错误答案,用来干扰机器的。
小题1:The patient was referred to a specialist for treatment.小题1:Our teacher never tolerates cheating in exams.Our teacher has no tolerance to cheating in exams.Out teacher...