∵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.