问题 问答题

MRI应用于心脏大血管检查的优势有哪些?

答案

参考答案:①心肌和血管壁组织与血流的信号间存在良好的对比,无需任何对比剂;②MRI为无创伤性检查,亦无放射线辐射损伤,有较高的安全性;③MRI为三维成像,可进行任意平面断层扫描并重复显示心、大血管的解剖结构,并可定量测定心脏的体积和重量;④MRI心脏电影可动态显示心脏收缩和舒张期的运动包括心脏瓣膜运动,血流动力学和心肌收缩率等,随着心分析软件的不断开发,可对心功能进行更加全面而准确的评估。

阅读理解

根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

(注 ,E涂AB,F涂AC, G涂 AD )

Good study habits

__小题1:__They’ll help you learn the material if you practice over and over again. Play around with them to fit yor own personal needs, and you will make big progress.

Firstly, go to class. You won’t do well if you don’t have the information. 80% of the grades depend on showing up, so be there. This should be your top choice when it comes to building study habits.__小题2:__.

Secondly, make sure that no matter what happens, you review your notes the day you take them.___小题3:__.If that means re-working difficult problems, getting tutoring, or reading, then do it. The more review work you do at a time, the better your grades will be. Don’t be one of those who wait until the last minute to study .It’s more fun to get sleep and do well in your exam.

Finally, practicing is very good for you. Classes involving problem-solving require you to work on your problem-solving skills in order to get good grades. So practice working on those physics, math, chemistry, etc. Problems.___小题4:___ Put forward your questions in class, and then you can make progress in a short time.

As you build your habits, get into a groove(成为习惯).__小题5:____

A.If you don’t go to class, you’ll miss need-to-know information and any other important things.

B.Pick up a good habit like exercising or give up an unhealthy one like smoking.

C.I’ve got a list of practical good study habits that you may want to know.

D.Come up with some questions that you could ask your professor.E. The goal is to understand what you are taught the same day.

F. Good habits, on the other hand, tend to take more time to make.

G. The more you do it, the more natural it’ll feel.

不定项选择