问题 单项选择题

关于分线角技术以下说法错误的是()

A.胶片的感光面置于被照牙的舌腭侧,尽量使胶片贴和被照部位的组织面

B.胶片边缘需与切缘或面平行并超出1cm左右

C.投照上下颌切牙时,使被照牙唇面与地面垂直

D.投照上颌后牙时,听口线与地面平行;投照下颌后牙时,听鼻线与地面平行

E.X线的中心射线必须与牙长轴和胶片所成角度的分角线垂直

答案

参考答案:D

阅读理解

It is common and usual to see people freak out when they face challenges in their life. We all pass in different life problems and challenges. No one is free of life problems. Only a dead man faces no problem. As long as you are alive, challenges are everywhere.

How do you face problems and challenges in your life? Problems and challenges are the building blocks of your personality. They make you who you are. Besides, whether what happened in your life builds or destructs you depends on how you look at it. If you take your problems as troubles, they will be troubles and may cause destruction. If you take them as constructive tools, you are going to be built up on them.

Problems are everywhere. No one can avoid them. And they are good too. They open up a different look and opportunity if you are willing to see. When you face troubles, do not frustrate or freak out. Just cool yourself to think in a different direction. Think in a positive way. Every problem has its own good as well as bad sides. Focus on the good one. Look at the bright side.

Besides, there is always a good person, perhaps your mom or dad, or one of your friends, right beside you who can turn everything into your best if you are willing to turn to them. No matter what happens, they will be there to help you. Trust them and they will never let you down. All you need to know is that you are loved wherever you are.

小题1:What’s the meaning of the underlined phrase “freak out” in Paragraph 1?

A.Feel shy.

B.Stay calm.

C.Keep up.

D.Feel upset.小题2:In Paragraph 2, the writer implies that ______.

A.problems cause troubles

B.attitude is everything

C.challenges can be avoided

D.personalities are built on failures小题3:According to the last paragraph, when we're in trouble, we ______.

A.can only depend on our parents

B.are not alone

C.should only believe ourselves

D.are not confident小题4:What’s the writer’s purpose to write the passage?

A.To encourage.

B.To compare.

C.To prove.

D.To explain.小题5:What can be the best title of the passage?

A.How to Avoid Problems

B.Challenges Are Everywhere

C.Face Your Challenges Bravely

D.You Are Loved Wherever You Are

多项选择题