The tooth with the root that is approximately twice as long as the<br/>crown and an oval-triangle section of the root neck is () A: the maxillary central incisor B: the mandibular central incisor C: the maxillary canine D: the mandibular canine E: the maxillary first premolar

Which tooth has a root twice the length of the crown, and the shape of the cross section of the root is oval triangular? () A: The maxillary central incisor B: The mandibular central incisor C: The maxillary canine D: The mandibular canine E: The maxillary first premolar

Which tooth has a root twice the length of the crown, with an oval<br/>triangular shape at the cross section of the root: () A: The<br/>maxillary central incisor B: The<br/>mandibular central incisor C: The<br/>maxillary canine D: The<br/>mandibular canine E: The<br/>maxillary first premolar

The tooth that can be extracted by the rotating force is the () A: The maxillary central incisor B: The mandibular central incisor C: The maxillary lateral incisor D: The mandibular lateral incisor E: The premolar

Which tooth position does 73 stand for? A: deciduous maxillary left canine B: maxillary right canine C: deciduous mandibular left canine D: deciduous mandibular right canine

Which tooth position does 24 stand for? A: maxillary left first premolar B: maxillary right first premolar C: mandibular right first premolar D: mandibular left first premolar

Furuncle in dangerous triangles is prone to concurrency? () A: Blepharitis B: Stomatitis C: Maxillary sinusitis D: Cavernous sinusitis E: Nasosinusitis

站立时窦腔内分泌物最不容易流出的鼻旁窦是： A: frontal sinus B: maxillary sinus C: sphenoidal sinus D: anterior group of the ethmoidal sinuses E: posterior group of the ethmoidal sinuses