肿瘤切取活检,最好在() ["肿瘤中央区","肿瘤破溃区","肿瘤边缘1.0cm处","肿瘤边缘与正常组织交界处"]
支气管扩张剂对COPD病理过程的影响有() ["减少血浆渗出","抑制细胞炎症介质的释放","减少神经传导介质的释出","抑制支气管收缩","减轻呼吸肌疲劳"]
长面综合征畸形在于() ["上颌骨垂直向发育过度","下颌骨垂直向发育过度","上颌骨前后向发育过度","下颌骨前后向发育过度"]
舌系带矫正术施行年龄是() ["出生当天","3个月","开始学语之前","6岁以后"]
关于牙颌面畸形正颌外科治疗的术前正畸,下列说法错误的是() ["矫正错位牙","消除牙合干扰","达到磨牙中性关系","消除牙代偿性倾斜"]
酸碱平衡的调节机制有()、()。