由题意可得x-23-x≥0
∴x-2x-3≤0
∴2≤x<3即函数的定义域为[2,3)
故答案为;[2,3)
-How is the life in Wenchuan earthquake areas now?
---People are living a much better life than we __.
A: expected B. supported C. discovered D. noticed
Swing的事件处理机制包括______、事件和事件监听者。