∵代数式3x+2x-1有意义，
∴3x+2≥0x-1≠0，
解得x≥-23且x≠-1．
故答案为：x≥-23且x≠-1．
用于治疗溃疡性结肠炎
A．抑肽酶B．水杨酸偶氮磺胺吡啶C．甲氧氯普胺(胃复安)D．左旋多巴E．西咪替丁
— What's this?
— __________________[ ]
A. It's a radio.
B. I watch TV.
C. I like to play with my friends.
