脊髓灰质炎最常见的受损部位是() ["脊髓颈段和腰段前角运动神经元","脑神经","脊髓侧索","呼吸中枢","血管运动中枢"]
患者上颌牙列缺损,下颌为天然牙列,曾做上颌可摘局部义齿修复,但义齿反复折断,此次要求重新修复。口腔检查上颌仅剩;MOD银汞充填后,面低于平面约1mm,不松动;过长高于平面约1.5mm,舌尖较锐,高于平面约2mm,下颌牙均不松动,下颌弓宽于上颌弓,颌间距离正常 ["
在修复前准备时,不应采取的措施为().A.调下前牙切缘","拔除过长牙","调低过长牙","修整余牙外形,调过锐牙尖、牙嵴","形成良好的

曲线"]
早期胃癌是指() ["直径<5cm","局限于肌层","无淋巴结转移","局限于黏膜和黏膜下层","直径<2cm"]
正常胸部位片
脊髓灰质炎密切接触者应严密观察() ["7天","10天","15天","20天","30天"]
()是古代用来盛放肉酱、腌菜等调味品的器具。