The bus is coming. Oh, my God! It's full. I'm afraid we can't ________ it.
A:get up
B:get on
C:get off
因为大量出口石油资源,而成为比较富裕国家的是( )
A.G→Q+NaCl
B.Q+H2O→X+H2↑
C.Y+NaOH→G+Q+HO
D.Z+NaOH→Q+X+H2O
判断氯的化合价由低到高的排列顺序( )