据悉,奥运会上使用的发令枪所用的“火药”成分是氯酸钾和红磷,经撞击发出响声同时产生白色烟雾。撞击时发生的化学方程式为:5KClO3+6P=3P2O5+5KCl,下列有关叙述正确的是
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.
I’m sure that your letter will get______ attention. They know you’re waiting for the reply.