【简答题】在恒温恒容条件下某气相反应的机理为: A + B C ,反应的 △ r U θ m = 50.0 kJ·mol -1 ,则上述正反应的活化能 E a , 1 为 ( ) ( A )一定大于 50.0 kJ ·mol -1 ( B )一定等于 50.0 kJ ·mol -1 ( C )一定大于 -50.0 kJ ·mol -1 ( D )既可能大于、也可能小于 50.0 kJ ·mol -1
【简答题】A good interview preparation consists of _____________ stage(s). It is (They are) _________________ .A. one; before the interviewB. two; before the interview and during the interviewC. three; before t...