下列有关心功能不全的定义,哪项最恰当() A.心脏每搏排血量低于正常 B.心脏功能的

题型:单项选择题

问题:

下列有关心功能不全的定义,哪项最恰当()

A.心脏每搏排血量低于正常

B.心脏功能的减低引起大小循环的充血现象

C.心脏不能再提供周围血循环所需的心脏每搏排血量

D.通过交感神经的对抗性调节作用,不能提供足够的心脏每搏排血量

E.心脏只能通过本身的肥大或频率的增加来满足周围血循环的需要量

考点:麻醉科住院医师心脏病人非心脏手术的麻醉心脏病人非心脏手术的麻醉题库
题型:单项选择题

一位长者告诫年轻人:“我第一要劝你们的是做‘书呆子’,只有先做‘书呆子’,然后才能做聪明人。”这句话的积极意义是在表明    (      )

A.从书本出发和从实际出发要结合起来

B.学习第一,实践第二

C.书本知识是认识的唯一来源

D.健全的知识结构,有利于我们正确认识世界和改造世界

题型:单项选择题

正火的目的之一是改善()的切削加工性。

A.低碳钢

B.高碳钢

C.工具钢

D.过共细钢

题型:单项选择题

顿咳的表现为

A.咳声低微
B.咳声重浊
C.咳声如犬吠
D.咳声气喘中有痰鸣音
E.以上均不是

题型:单项选择题

Windows2000提供了几种安装类型供计算机用户选择,即()

A.典型安装

B.便携安装

C.最小安装

D.定制安装

题型:单项选择题

When I tell people that I’m a professor of communication, they often are confused (1) what the term "communication" means. Many people think mass communication is the (2) type of communication, but mass communication is only one form of communication. The study of mass communication focuses on messages that are (3) over (4) such as television, newspapers, and radio. Other areas of (5) focus on the messages individuals send to one another. Some of the major contexts in which communication is studied (6) the interpersonal context, the organizational context, and the intercultural context. A scholar studying (7) communication, for example, might examine how married couples (8) with misunderstandings and the effects these misunderstandings have on (9) satisfaction. Organizational communication scholars, on the other hand, might study (10) the communication styles used by managers and their subordinates influence productivity and efficiency in a company or factory.
My area of specialization is intercultural communication. Intercultural communication is an (11) field of study which incorporates research from disciplines (12) as social psychology, sociology, cultural anthropology, sociolinguistics, and of course, communication. One of the (13) important areas of research addressed by intercultural scholars is how misunderstandings can be (14) when people communicate with Others from different (15) . To understand the process of intercultural communication, we must study how individuals’ cultural backgrounds (16) their communication behaviors.
The area of intercultural communication is a relatively new (17) of study even in the United States. While most Chinese students studying communication in the United States (18) on mass communication, there are some who are interested in intercultural communication and plan to return to China to teach and (19) research in this area. The work of these Chinese scholars on intercultural communication is important because it will help improve (20) between Chinese and Americans in the future.

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