与福氏志贺毒素致病作用类似的毒素是() ["肉毒外毒素","大肠杆菌内毒素","霍乱外毒素","金黄色葡萄球菌外毒素","伤寒杆菌内毒素"]
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"]
目前采用的地高辛维持量法首次给药剂量一般为每日()。 ["0.125mg","0.25mg","0.5mg","0.75mg","先使用负荷剂量后使用维持剂量"]
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"]
及早识别____、找出____并加强糖尿病教育和____是预防下肢截肢的关键