下列有关化学用语的表述不正确的是( )
| A．乙醇与甲醚(CH3—O—CH3)互为同分异构体 |
| B．2,2二溴丙烷的结构简式可表示为CH2BrCHBrCH3 |
C．苯分子的比例模型： |
D．乙烯分子的结构式： |
My friend showed me round the town, ______ was very kind of him. 
| A．which | B．that | C．where | D．it |
They use computers to keep the traffic _______ smoothly.
| A．being run | B．run | C．to run | D．running |
If you leave the club, you will not be_____back in .
| A．received | B．admitted | C．turned | D．moved |
What I need is_____ book that contains ______ABC of oil painting.
| A．a; 不填 | B．the; 不填 | C．the; an | D．a ; the |
Jenny nearly missed the flight______ doing too much shopping.
| A．as a result of | B．on top of | C．in front of | D．in need of |