某一反应在一定条件下的平衡转化率为25.3%,其他条件不变,有一催化剂存在时,其转化率为( )
If you leave the club, you will not be_____back in .
What I need is_____ book that contains ______ABC of oil painting.
Jenny nearly missed the flight______ doing too much shopping.
The CDs are on sale! Buy one and you get ______ completely free.
Progress______ so far very good and we are sure that the work will be finished on time.