问题 单项选择题

肺气肿时,心脏浊音界的改变多为()

A.心浊音界向左扩大

B.心浊音界缩小

C.心浊音界向右扩大

D.心浊音界向两侧扩大

E.以上均非

答案

参考答案:B

解析:本题考查心脏浊音界变化的临床意义,心浊音界缩小见于肺气肿;心浊音界向左扩大见于主动脉病变及主动脉瓣关闭不全;心浊音界向右扩大见于肺心病或单纯的二尖瓣狭窄;心界向两侧扩大,且随体位改变而改变见于心包积液。

阅读理解

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。

     Here are some ways to help you have a happier and more successful life:

      1  Instead of saying, "Why is this happening to me?" you say, "What can I learn from this?" Trust that

anything difficult in life is temporary. Then life will get better.  2  Without life's challenges, we would never

know what we are truly made of. Therfore, we become stronger and more confident in the process.

     3  It actually works! Don't say it doesn't work until you've tried it. We all have a blueprint for our lives

and making plans will help us realize it.

     Take care of people around you honestly.   4   If you truly care about your friends, family or someone

else, they'll stick with you through high and low because they know you care about them.

     Refuse to compare your progress with others. It will only serve to destroy your confidence. Everyone

is at different stages in their lives. If you understand that you're right where you're supposed to be, then it

won't matter what others are doing. You are unique with special qualities, talents, skills and so on.  5  

A. Pay attention to your imagination.

B. The power of making plans cannot be ignored.

C. Try to learn from the difficult situations you meet.

D. Everything you've experienced has been in preparation.

E. There is no one like you, so how can you compare yourself to others?

F. It is through the toughest times we learn what we're capable of doing.

G. People can see right through you and can feel whether you're honest or not.

判断题