下列对金、银、铜的描述错误的是( )
| A．金具有极高的抗腐蚀性、优良的导热、导电性 |
| B．银可用作有机合成催化剂、电池等材料 |
| C．Cu属于不活泼金属，在潮湿的空气中不易被腐蚀 |
| D．铜具有良好的导电性，大量用于制造电线、电缆 |
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 |
All the dishes in this menu, ______ otherwise stated, will serve two to three people. 
| A．as | B．if | C．though | D．unless |
The children loved their day trip, and they enjoyed the horse ride ______.
| A．most | B．more | C．less | D．little |