关于频谱多普勒技术的应用,不对的有A.测量血流速度 B.确定血流方向 C.确定血流种

题型:单项选择题

问题:

关于频谱多普勒技术的应用,不对的有

A.测量血流速度

B.确定血流方向

C.确定血流种类,如层流、射流等

D.了解组织器官的结构

E.获得速度时间积分,压差等有关血流的参数

考点:超声波医学主治医师超声医学相关专业知识超声医学科主治医师相关专业知识5
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选出与问句相匹配的答句。
( ) 1. Can you play cards?        
( ) 2. Can a fish swim?           
( ) 3. What has wings?            
( ) 4. Does a pig have wings?     
( ) 5. What colour is the rabbit? 
( ) 6. Is the mouse big?          

A. A duck has wings.
B. No, it isn't.   
C. Yes, I can.        
D. It's white.       
E. Yes, it can.                                                                            
F. No, it doesn't.   

题型:单项选择题

The home of the future won’t be completely different and we will be living in houses and flats just as we do today. But people will want to shape their homes to match their dreams. No two homes will be the same. People will be able to buy “house kits” containing a basic house structure, with movable walls, doors and windows. They will put together the different parts to create the home they want.

Many jobs that we do today will disappear, others will still exist but will change and new jobs will be created. Skilled workers such as builders, gardeners and electricians won’t disappear because machines can’t replace them. Teachers will still exist because students need human contact. But they will be using modern technology in class more and students will be working more from home. The medical technology revolution and space travel will create new jobs which we can only imagine today.

Space holidays will develop in the future, but these holidays won’t be for everyone because they won’t be cheap. Short space trips will develop first, then space hotels will orbit the earth where it will be possible to have a longer vacation. By the end of the next century, there will be holiday centres on the moon with leisure facilities for families.

Paper won’t exist in the future. Instead, there will be e-paper which people will be able to use over and over again. This will develop in order to save natural resources. E-newspapers and e-magazines will replace traditional newspapers and magazines and we will download information and news articles from the Internet every day onto our reuseable paper.

The laws of physics tell us that the earth is going to disappear some time in the future. This isn’t going to happen tomorrow but scientists predict that it will happen in five billion years when our sun explodes(爆炸).We will have to explore the universe and find another home. At some point in the distant future, either we stay on the earth and die with it, or we leave and move to another planet. There won’t be any other choice.

60.Homes of the future will ________.

A.be completely different from those of today.

B.be very similar to our homes

C.all be different form one another                 

D.be movable as you want

61.Space trips and staying in space hotels will _________.

A.become a very common way to spend a holiday

B.be the cheapest holiday option for families

C.attract a lot of people

D.still only be for very rich people

62.E-paper will replace traditional paper because _________.

A.we will use it again  B.it won’t waste natural resource

C.it will be cheaper to produce   D.it will be convenient to carry

63.We will have move to another planet ________.

A.if we want to save the human race  B.when the sun explodes

C.when the earth disappears       D.when the earth is too crowded to fill people on

题型:单项选择题

分项工程应按()划分。

A.主要工种

B.施工工艺

C.设备类别

D.专业性质

题型:单项选择题

某基因型RrMm的番茄,在形成配子时,其非等位基因之间的分离或组合互不干扰。该番茄植株自交后代中,杂合子约为总数的()

A.1/2

B.1/4

C.1/8

D.3/4

题型:单项选择题

下列关于软膏剂叙述不正确的是()

A.软膏剂系指药物与适宜基质均匀混合制成具有适当稠度的半固体外用制剂

B.软膏剂具有热敏性和触变性

C.热敏性反映遇热熔化而流动

D.触变性反映施加外力时黏度升高,静止时黏度降低

E.软膏剂主要用于局部疾病的治疗

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