下列有关说法错误的是( )
| A．利用铝热反应可以冶炼熔点较高的金属 |
| B．常温下，可以用铁制容器来盛装冷的浓硫酸 |
| C．用作“钡餐”的物质主要成分是硫酸钡 |
| D．人造刚玉熔点很高，可用作高级耐火材料，其主要成分是二氧化硅 |
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 |
The CDs are on sale! Buy one and you get ______ completely free.
| A．other | B．others | C．one | D．ones ks |
I’m sure that your letter will get______ attention. They know you’re waiting for the reply. 
| A．continued | B．immediate | C．careful | D．general |