男性,73岁。因"社区获得性肺炎"入院。给予卧床休息、应用抗生素和对症处理3天,体温

题型:单项选择题 A3/A4型题

问题:

男性,73岁。因"社区获得性肺炎"入院。给予卧床休息、应用抗生素和对症处理3天,体温下降,症状好转。住院第4天突发呼吸困难,咳痰带鲜血、伴胸痛。查体:见左下肢肿胀。

应首选哪项检查以排除肺血栓栓塞症的诊断()

A.X线胸片

B.超声心动图

C.心电图

D.血浆D-二聚体

E.凝血时间

考点:重症医学习题集静脉血栓与肺栓塞的诊断和治疗静脉血栓与肺栓塞的诊断和治疗题库
题型:单项选择题 A3/A4型题

关于三腔二囊管的使用,下列说法正确的是

A.使用前应将三腔二囊管置于水中,检查是否漏气

B.经鼻插入约50~60cm,抽得胃内容物

C.放置24小时后,出血停止,可排空气囊,观察12~24小时

D.放置时间不宜超过3~5天

E.每12小时应排空气囊10~29分钟

题型:单项选择题 A3/A4型题

某企业6月30日“应收账款”所属各明细账户期末借方余额合计数为83000元,“预收账款”明细账户借方期末余额为7000元,贷方余额50000元;“坏账准备”贷方期末余额为410元,则填入资产负债表的“应收账款”应为( )。

A.90000

B.76000

C.75590

D.89590

题型:单项选择题 A3/A4型题

"High tech" and "state of the art" are two expressions that describe very modern technology. High tech is just a shorter way of saying high technology. And high technology describes any invention, system of device that uses the newest ideas or discoveries of science and engineering.

What is high tech A computer is high tech. So is a communications satellite. A modern manufacturing system is surely high tech.

High tech became a popular expression in the United States during the early 1980’s. Because of improvements in technology, people could buy many new kinds of products in American stores, such as home computers, microwave ovens, etc.

"State of the art" is something that is as modern as possible. It is a product that is based on the very latest methods and techn01ogy. Something that is "state of the art" is the newest possible design or product of a business or industry. A state of the art television set, for example, uses the most modern electronic design and parts. It is the best that one can buy.

"State of the art" is not a new expression. Engineers have used it for years, to describe the best and most modern way of doing something.

Millions of Americans began to use the expression in the late 1970’s. The reason was the computer revolution. Every computer company claimed that its computers were "state of the art".

Computer technology changed so fast that a state of the art computer today might be old tomorrow. The expression "state of the art" became as common and popular as computers themselves. Now all kinds of products are said to be "state of the art".

Which of the following statements is NOT true()

A. Since the computer revolution, the expression "state of the art" has become popular

B. "State of the art" means something that is the best one can buy

C. With the rapid development of computer technology, a state of the art computer may easily become out of date

D. All kinds of products are "state of the art" nowadays

题型:单项选择题 A3/A4型题

城市轨道交通专用通信系统,按功能可分为:()。

题型:单项选择题 A3/A4型题

土壤压缩

更多题库