26岁孕妇,停经48日后出现阴道少量流血伴右下腹隐痛。今晨起床时突然右下腹剧痛来院。检查:BP90/60mmHg,面色苍白,下腹稍膨隆,右下腹压痛明显,肌紧张不明显,叩诊移动性浊音(±)妇科检查:子宫稍大稍软,右附件区触及有压痛包块。恰当诊断应是() ["急性肠胃炎","急性阑尾炎","右侧卵巢肿瘤蒂扭转","输卵管妊娠流产","急性输卵管炎"]
Dean氟牙症分类系统标准,“牙齿的釉质表面有明显磨损,棕染,常很难看”属于分类当中的哪个标准() ["正常(0)","可疑(0.5)","很轻度(1)","轻度(2)","中度(3)"]
胃大弯上部癌淋巴结转移主要流向的淋巴结群() ["幽门上淋巴结","幽门下淋巴结","胰淋巴结、脾淋巴结","胃上淋巴结","胃网膜右淋巴结"]
某患者近期发现肝大(肋下4cm),质硬,有大小不等的结节,伴低热、纳差,轻度黄疸,HBsAg(+),ALT40U/L,AFP800μg/L。最可能的诊断是() ["急性黄疸性肝炎","慢性活动性肝炎","大结节性肝硬化","原发性肝癌","胆汁性肝硬化"]
Dean氟牙症分类系统标准,“小的似纸一样的白色不透明区不规则地分布在牙齿上,但不超过牙面的25%”属于分类当中的哪个标准() ["正常(0)","可疑(0.5)","很轻度(1)","轻度(2)","中度(3)"]
锅炉需产热水合100000kcal/h,焦炉煤气平均热值为4200kcal/Nm,热效率为85%,问每小时耗气量Q为多少?