搜题请搜索小程序“爱下问搜题”
问题 单项选择题 案例分析题

女性，72岁，直肠脱垂术后第三天，诉右下肢痛，心慌，烦躁，喘憋，T38.6℃，心律绝对不齐，心室率78～156bpm，EKG示房颤，BP78／42mmHg，呼吸32次／分，PaO256mmHg，PaCO230mmHg，CVP4cmH2O，尿量360ml／24小时，血WBC32×109／L，中性粒细胞96％，BUN12.4mmol／L，右下肢自踝至髋部皮肤充血水肿，触痛，局部皮温高于对侧肢体

治疗应首先考虑（）

A.严格限水、限钠，量出为入

B.强心，利尿，扩血管，降低心脏前、后负荷

C.积极扩容的同时应用血管活性药物，提升血压

D.冠状动脉溶栓治疗

E.以上都对

答案

参考答案：C

单项选择题

输送机机道要设置防灭火水管，每隔（）m设一个管接头和阀门。

A.10

B.30

C.15

D.20
查看答案
单项选择题

There is a difference between science and technology. Science is a method of answering (1) questions; technology is a method of solving practical problems. Science has to do with discovering the facts and relationships between (2) phenomena in nature and with establishing theories that (3) to organize these facts and relationships; technology has to do with tools, techniques, and (3) for applying the findings of science. Another (5) between science and technology has to do with the progress in each.

Progress in science (6) the human factor. Scientists, who seek to understand the universe and know the truth within the highest degree of (7) and certainty, cannot (8) their own or other people’s likes or dislikes or to popular ideas about the fitness of things. What scientists discover may shock or (9) people-as did Darwin’s theory of evolution. But even an unpleasant truth is (10) than likely to be useful; besides, we have the choice of refusing to believe it! But (11) so with technology; we do not have the choice of refusing to hear the sound produced by a supersonic aircraft flying overhead; we cannot refuse to breathe polluted air. (12) science, progress in technology must be measured (13) the human factor. The purpose of technology is to serve people—people (14) , not merely some people; and future generations, not merely those who presently wish to (15) advantage for themselves.

We are all familiar with the (16) use of technology. Many people blame technology itself (17) widespread pollution, resource depletion (枯竭) and even social decay in general—so much (18) the promise of technology is " (19) " That promise is a cleaner and healthier world. If wise applications of science and technology do not (20) a better world, what else will

3（）

A.serve

B.assume

C.intend

D.prove
查看答案