题干
Taking charge of the big company, I’m afraid, is _____ his ability.
A：beyond
B：withi
C：of
D：to
答案(点此获取答案解析）
A
2SO3 (g)；△H=－a kJ·mol－1在相同条件下，要想得到2a kJ热量，加入各物质的物质的量可能是（ ）