腹膜炎的结局与患者全身和腹膜局部的()有关;亦决定于()的性质、数量和时间。
最常见脑脊液鼻漏是() ["自发性脑脊液鼻漏","原发性脑脊液鼻漏","外伤性脑脊液鼻漏","医源性脑脊液鼻漏","非外伤性脑脊液鼻漏"]
对于舌向倾斜较明显的下颌磨牙,全冠的舌侧龈边缘最好为() ["刃状","凹状","90°肩台","135°肩台","带斜面的肩台"]
牙周病和牙髓病可通过下列途径彼此相互联系、相互影响() ["根尖孔","侧支根管","牙本质小管","以上都是","以上都不是"]
击出性骨折时最常见的疝入上颌窦的结构是() ["骨性眶底","眶脂肪","眶骨膜","眼球","下直肌及下斜肌"]
简要论述化工生产管路与管系安全技术中的化工管路布置的原则。