国家确定的“老、少、边、穷”地区新办的企业，可在( )年内减征或者免征所得税。
A．一
B．三
C．四
D．五
参考答案：B
用所给单词的恰当形式填空。
1. Kate's brother ___________ (have) a nice computer.
2. Where ___________ (be) your clothes?
3. Look at the map of ___________ (Chinese) on the wall.
4. The ___________ (child) are very happy. It's their holiday (节日).
5. His ___________ (parent) are office workers.
6. Mr. White ___________ (go) to work on foot every day. But he ___________ (go) there by
bike this morning.
7. Listen! The students ___________ (play) the guitar now.
OptiX2500+设备的定时单元在（）板，提供整个系统的（）。
