—People now can know what is happening in the world quickly. —You're right.With the help of computers,news can ___every corner of the world.
缩句。
①一大把火柴发出强烈的光。
②翠绿的树枝上点着几千支明晃晃的蜡烛。
已知:①CO(g)+NO2(g)═NO(g)+CO2(g)△H=﹣akJ•mol﹣1(a>0)
②2CO(g)+2NO(g)═N2(g)+2CO2(g)△H=﹣bkJ•mol﹣1(b>0)
若用标准状况下4.48L CO还原NO2至N2(CO完全反应),整个过程中转移电子的物质的量为____,放出的热量为____kJ(用含有a和b的代数式表示).