同层动态增强扫描主要研究病灶的增强特征,鉴别其性质,最常用于() A.肝癌与血管瘤的

题型:单项选择题 A1/A2型题

问题:

同层动态增强扫描主要研究病灶的增强特征,鉴别其性质,最常用于()

A.肝癌与血管瘤的定性

B.提高小肝癌的检出率

C.判断肝门淋巴结有无转移

D.肝癌与肝脓肿的鉴别

E.提高肝腺瘤的检出率

考点:放射科基础知识CT成像基础CT成像基础题库
题型:单项选择题 A1/A2型题

两个相似多边形的一组对应边分别为3cm和4.5cm,如果它们的面积之和为130cm2,那么较小的多边形的面积是(    )cm2

题型:单项选择题 A1/A2型题

在产品按固定成本计算的方法不适用于月末在产品数量很大的情况下。()

题型:单项选择题 A1/A2型题
阅读下面短文,根据所读内容在文后第76至第85小题的空格里填上适当的单词。
注意:每空1个单词。
When it comes to the world of computers, green computing is becoming popular. But what is green computing?
The term “green computing” is one that is being used in many different markets and areas all over the world in today’s global technology. However, many computer users aren’t sure what it means. Green computing is actually quite easy to explain and to do—it is basically learning to use computer resources more efficiently to protect the environment as well as saving energy. The main goal is to reduce the use of energy and materials that harm the environment.
Green computing started as early as 1992, when the EPA created Energy Star program that improved computing equipment and technologies. Because of this program sleep pattern appeared and many computer users began to adopt this policy to help save energy when they were not using their computers. In October of 2006, Energy Star made the requirements stricter for computers. Because of these new requirements, there are over 20 states that have now set up a special recycling program for old computers to help with green computing.
Many of today’s IT systems are beginning to rely on both people and hardware to help push their computer systems toward a more green computing system to help both the company and others. This is a hard balance to achieve, as it has to satisfy users. Many companies are learning the best ways that they call go greener when it comes to their computing and also help their business in the process. While many home computer users may not be quite as familiar with green computing as large firms, this term is starting to become more mainstream all around the world.
Green Computing
Definition
Learning to make 小题1:_______ use of computer resources in order to save energy and protect the environment.
Main goal
To reduce the use of energy and materials that do小题2:_____ to the environment.
小题3:____
In 1992 the EPA created Energy Star program , 小题4:______ improved computing equipment and technologies.
Then sleep pattern appeared and many computer users 小题5:__ the policy to save energy.
In 2006 Energy Star made the computer requirements 小题6:_____.
At小题7:___, over 20 states have set up a special recycling program for old computers.
Present 小题8:_
Green computing has to make users小题9:___.
Green computing is becoming more mainstream 小题10:__ the world.
题型:单项选择题 A1/A2型题

铁的密度为7.8×103千克/米3,读作______,它表示1米3铁的质量为______千克.平时我们常说铁块比泡沫塑料重,或者说铁块的质量比泡沫塑料的质量大,显然,这是将______相同的铁块与泡沫塑料相比较而言的.

题型:单项选择题 A1/A2型题

相邻两座A、月楼,由于建月楼对A楼产生影响,如图所示,试计算建月楼后A楼的附加沉降量。

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