日出:日落A.开花:结果B.上课:下课C.潮起:潮落D.结婚:离婚 发布时间:2017-06-22 18:23 │ 来源:www.tikuol.com 题型:单项选择题 问题: 日出:日落A.开花:结果B.上课:下课C.潮起:潮落D.结婚:离婚
题型:单项选择题 — Amazingly, Zhuo Jun got the first place for the China's Got Talent (中国达人秀) last night.— So wonderfully ______ in the show that he deserved it. [ ]A. did he perform B. had he performed C. he performed D. he had performed 查看答案
题型:单项选择题 汞原子的能级如图,现一束单色光照射到大量处于基态的汞原子,汞原子只发出三种不同频率的单色光.关于入射光的能量下列说法正确的是A.等于4.9 eVB.等于7.7 eVC.等于8.8 eVD.大于或等于10.4 eV 查看答案