第16题: [单项选择]女性，35岁，甲状腺大部切除术后5h突然自诉呼吸困难，主管医师立即前往检查，发现患者意识清晰，面罩吸氧，痛苦貌，唇发绀，血压110／72mmHg，心率90次／分，血氧饱和度93%，颈部略显肿胀，负压引流球内有50ml血液，引流管已被不慎拔出。应首先进行的操作是（）。 A. 放入口咽通气道 B. 紧急气管插管 C. 立刻拆除缝线，敞开切口 D. 马上行气管切开 E. 给予镇静药物 参考答案:C
第17题:[单选题]14.In the trade between a small and a large nation: A.A.the large nation is likely to receive all of the gains from trade B.B.the small nation is likely to receive all of the gains from trade C.C.the gains from trade are likely to be equally shared D.D.we cannot say 参考答案:B
