龈上牙石易沉积于() ["后牙邻面和前牙唇面","全口牙邻面","全口牙颊舌面","上磨牙颊面和下前牙舌面","下磨牙颊面和上前牙舌面"]
结肠充气试验阳性() ["提示急性阑尾炎时阑尾位置较深","提示急性阑尾炎时阑尾位置较低","提示急性阑尾炎时阑尾炎症严重","提示急性阑尾炎时阑尾位置偏后","证实慢性阑尾炎的存在"]
患儿确诊巨细胞病毒肺炎,应选用以下哪种药物治疗() ["阿昔洛韦","红霉素","氨苄西林","更昔洛韦","干扰素"]
男性,31岁,阵发性腹痛4天伴肠鸣、恶心、未吐,12小时来未排便或排气,3年前曾因节段性肠炎行回肠末端切除术,术后一年出现多次腹痛发作,情况与本次相似,查体:腹胀,可见肠型及蠕动波,肠鸣音活既,可闻及气过水声。最应做的检查是() ["A.血沉","腹部超声","腹部X线平片","消化道造影检查","结肠镜检查"]
顿咳的好发季节是() ["A.春秋","B.春夏","C.秋冬","D.夏秋","E.冬春"]
防止疟疾复发和传播的药物是()。