第3题: [单项选择]常规抗休克措施应用后血压仍不理想的顽固性休克病人,必要时可试用哪种药物治疗() A. 低分子右旋糖酐 B. 酚妥拉明 C. 多巴酚丁胺 D. 西地兰 E. 糖皮质激素 参考答案:E 答案解析:休克治疗中在充分容量复苏的前提下需应用血管活性药物,以维持脏器灌注压。酚妥拉明能解除去甲肾上腺素所引起的小血管收缩和微循环淤滞并增强左室收缩力。因此,当血压稳定需要改善微循环状态时可选择酚妥拉明。多巴
第12题: [单项选择]The three foreigners were pushed out of the way because______. A. they did not queue for the bus B. they were foreigners C. the people were unfriendly D. there were not any reasons 参考答案:A 答案解析:细节题。从第—段可以看出,人们要将那三个外国人挤开的原因是因为他们没有排队等候公共汽车。并不是B、C、D中所描述的那样。
第26题:[单选题]问题 3:Why does the detergent they have on board can help prevent pollution?( ) A.Because it breaks down easily. B. Because it is strong. C. Because it needs less water. D. Because it is less harmful to hands. 参考答案:A
第30题: [单项选择]表现为吸气性呼吸困难的疾病是() A. 支气管哮喘 B. 慢性支气管炎 C. 慢性阻塞性肺气肿 D. 广泛肺纤维化 E. 气管内异物 参考答案:E 答案解析:吸气性呼吸困难表现为吸气费力、三凹征等,多提示喉、气管与大支气管狭窄与阻塞。呼气性呼吸困难表现为呼气费力,呼气时间明显延长,多见于下呼吸道阻塞疾病。A、B、C、D均为下呼吸道阻塞疾病。故本题选E。