腮腺的开口位置是() ["下颌第2磨牙牙冠相对的颊黏膜","上颌第2磨牙牙冠相对的颊黏膜","上颌第1磨牙牙冠相对的颊黏膜","上颌尖牙牙冠相对的颊黏膜","下颌尖牙牙冠相对的颊黏膜"]
下列不属于语言学教学原则的是()。 ["A.以语言学基础知识的讲述为主","B.精讲多练","C.注重系统性","D.注重理论性"]
足月女婴,生后24小时内出现黄疸,拒哺。查体:嗜睡,面色苍白,Hb90g/L,血清未结合胆红素342μmol/L。首选的检查是() ["A.肝功能","血常规","血培养","血型","肾功能"]
试述绞窄性肠梗阻的临床特征。
胸腔癌肿最易转移的淋巴结部位是() ["腋窝淋巴结","颈部淋巴结","左锁骨上窝淋巴结","右锁骨上窝淋巴结","腹股沟淋巴结"]
试述T管引流的主要目的。