职业病是指用人单位的劳动者在(),因接触粉尘、放射性物质和其他有毒、有害物质等因素而引起的疾病。 ["职业岗位上","生产工作中","劳动过程中","职业活动中"]
下列哪项不是张力性气胸的临床表现() ["呼吸困难","心动过速","发绀","血压升高","患侧呼吸音减弱或消失"]
β-干扰素治疗MS的效果是() ["可降低复发率","对进展型者效果好","对MRI上病灶数影响不大","仅在动物实验有效","疗效与剂量、剂型、用药途径无关"]
Horner综合征临床表现不包括() ["瞳孔缩小","眼睑下垂","结膜充血","面色潮红","皮肤出汗"]
某患者,女,39岁,6个月前因外伤致一上前牙脱落,今要求烤瓷桥修复。口腔检查:右上中切牙缺失,间隙无明显异常,牙槽嵴高度无明显异常,较平整。左上中切牙近中切角缺损,未露髓,探稍敏感,叩诊阴性,无松动。右上侧切牙牙冠完好,叩诊阴性,无松动。上下前牙牙龈轻度红肿,易出血,可见少量菌斑及牙石,余牙未见明显异常。下列哪项关于右上侧切牙金瓷冠牙体预备的要求是正确的() ["A.切端磨除2mm","唇面磨除2mm","牙体预备分次磨除","唇面龈边缘在龈沟底","唇面龈边缘在龈上"]
鼻烟壶