《白雪歌送武判官归京》中,以春花喻冬雪,使人忘记奇寒而内心感到喜悦与温暖的名句是:____,____。
There ________ no school today. ( )
2NaNH2+N2O=NaN3+NaOH+NH3、3NaNH2+NaNO3=NaN3+3NaOH+NH3↑