第2题: [填空题]It is suggested in the passage that some unimportant extra duties that the police have to undertake prevent the police from carrying out some more important duties. 参考答案:Y 答案解析:文章的最后一段暗示,警察所额外承担的一些琐碎的事情妨碍了警察去承担其他一些更重要的任务。所以,这一论述与文章的内容吻合。
第21题: [单项选择]测得某患者CVP为14ccmH2O,血压75/55mmHg。此时应采取的措施是()。 A. 补充液体 B. 血管紧张药物 C. 强心利尿 D. 应用皮质激素 E. 改善微循环 参考答案:C 答案解析:低血压情况下CVP高,提示心功能不全、静脉血管床过多收缩或肺循环阻力增加,应强心利尿。
第27题: [单项选择]Convection spreads a fire by(). A. heated gases flowing through ventilation systems B. the transfer of heat across an unobstructed space C. burning liquids flowing into another space D. transmitting the heat of a fire through the ship's metal 参考答案:A