第3题: [单项选择]腰椎麻醉时常合用麻黄碱,其目的是防止局部麻醉药 A. 抑制呼吸 B. 引起心律失常 C. 扩散吸收 D. 降低血压 E. 局部麻醉作用过快消失 参考答案:D 答案解析:麻黄碱常引起收缩压和舒张压上升,脉压增大,防止局部麻醉药降低血压。
第4题: [单项选择]在关系模式R(u)中,如果X->Y,并且对于X的任何一个真子集X',都有X'->Y,则称 A. Y函数依赖于X B. Y对X完全函数依赖 C. Y对X部分函数依赖 D. R属于2NF 参考答案:C 答案解析:[解析] 符号X->Y本身就意味着Y函数依赖于X。题目叙述的是决定因素X的子集X,也决定函数Y,即Y对 X的子集函数依赖,亦即对又部分函数的依赖,不是完全函数依赖。所以选项A)和B)都不正确。R属于2
第8题: [单项选择]We'll give every teacher {{U}}space{{/U}} to develop. A. chance B. employment C. room D. opportunity 参考答案:C 答案解析:space:空间。room:空间。又如:I'd like to bring the child with me if there is room in the car.chance:机会。Everyo
第16题: [填空题]It is important that the committee (inform) ______ about the project at once. 参考答案:be informed 答案解析:[考点] 虚拟语气和被动语态
[解析] 本题考查It is+advisable(possible,important,essential)+that从句,后面主语从句中的谓语动词要用“(sho
第19题: [单项选择]{{B}}Questions 11 to 18 are based on the conversation you have just heard.{{/B}} A. Mark’s happy that his parents are coming. B. Mark’s thinking about a number of things. C. Mark’s not feeling very well. D. Mark’s looking for a new apartment. 参考答案:B 答案解析:[听力原文]
M: Do you know what’s wrong with Mark He’s been acting very strangely lately.
W: Come on,
第24题: [单项选择]患者,男,35岁,畏寒,发热,胸痛,食欲缺乏12天,体温最高时为40℃,伴有咳嗽、咳黏液痰,无咯血,今晨突然咳出大量脓臭痰及坏死组织,痰量约350ml,体温降至37.8℃,全身毒性症状减轻。体检:肺部叩诊浊音,可闻及湿啰音及胸膜摩擦音。该病最有效的治疗方法是() A. 抗感染治疗 B. B超引导下胸腔穿刺引流 C. 透视下胸腔穿刺 D. 抗感染治疗+B超引导下胸腔穿刺引流 E. 以上都不是 参考答案:D