题干
—Mum, shall I leave today's homework till tomorrow?
—Better not, dear. Never ___________ what you can do today till tomorrow.
A：put on
B：put out
C：put off
D：put up
答案(点此获取答案解析）
C
2SO3，并达到平衡。在这过程中，甲容器保持体积不变，乙容器保持压强不变，若甲容器中SO2的转化率为p%，则乙容器中SO2的转化率