题干
给下列方框中的单词分类。
A. taller B. saw C. ton D. smaller E. bored F. happy G. size H. angry I. visited J. younger K. sad L. older M. watched N. went O. longer P. excited Q. won R. metre S. more T. kilogram U. tired V. read |
N2O3(g)+O2(g) ②N2O3(g) 