香叶醇是合成玫瑰香油的主要原料,其结构简式如下:下列有关香叶醇的叙述正确的是( )
They use computers to keep the traffic _______ smoothly.
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.