妊娠期口腔重点预防的疾病应是（） ["牙龈炎","牙周炎","牙创伤","龋病","磨损"]
康复医学是以下列哪方面内容为主导（） ["功能障碍恢复","心理疏导","疾病","人体完整","辅助矫形器应用"]
树突状细胞的表面分子（） ["CD3","CD19","KIR","MHC-Ⅱ","LPS"]
直肠指检，扪到条索状，伴有轻度压痛，挤压时外口可有脓性分泌物流出者（） ["内痔","肛瘘","外痔","直肠息肉","直肠癌"]
禽梭菌性疾病
煤粉气流着火的热源是什么？影响煤粉气流着火的因素有哪些？
