对患牙应选择的局部治疗方法是()。 A. 3%过氧化氢反复冲洗龈袋 B. 硝酸银烧灼 C. 局部封闭 D. 湿热敷 E. 冷敷 参考答案:A
第9题: [单项选择]Why can’t the woman buy it A. Because the man doesn’t like it. B. Because the woman doesn’t have time. C. Because the woman knows he doesn’t have money. D. Because they don’t have enough money. 参考答案:D 答案解析:[听力原文] W: I’m going to buy a new carpet. M: But you can’t do that. W: Why can’t I M: We