问题 单项选择题 A型题

患者,男性,13岁,家长发现其眼位不正2年。查体:Vou:1.0,双眼检查诊断为共同性外斜视20°,双眼眼内检查正常。给予双眼外直肌徙后斜视矫正术。术后第1天检查双眼眼位内斜视4°,第2天检查右眼明显内转,外转无力。此时可能的情况是()

A.麻醉作用还未消失,右眼外直肌功能受到影响

B.患者配合不佳,待患者配合后再查

C.右眼肌肉缝线滑脱

D.原因不明,观察看有无好转后再决定治疗方案

E.检查时左眼配合欠佳

答案

参考答案:C

解析:该题为斜视手术术后并发症的问题,共同性外斜视术后眼位应该达到轻度内斜视程度,这样才能保证长期效果。该患者术后第1天效果很好,第2天突然发生术眼外转受限,明显内斜视,首先应该考虑肌肉缝线滑脱,因此此时应该再次到手术室进行右眼外直肌探查术。故答案为C。

阅读理解

阅读理解

      Online games, social-networking web sites, and chat rooms are fascinating and motivating for teens

and help with their development. When adults look at teens today, they think what they are doing is

different and seem to be wasting a lot of time. And those activities seem quite foreign. But when we look

closely at what kids are doing, it's not much more different than what their parents did. They are hanging

out with their friends, finding romantic partners, and trying to identify themselves.

     Today's teens are being raised with technologies that allow them to have self-directed learning on

their own terms, on their own time, and without the limitations of a classroom setting. This gives the teens

a feeling of freedom. This is very different from how kids learn in school when they are handed a set

body of knowledge required to master by their teachers.

     Teens were motivated to be addicted to online because they were either driven by interest or

friendship. And there are some specific findings according to a research:

      One major finding is that there is a generation gap in how parents and teens view the teen's online

activities. Adults think the activities draw their attention from school work and are left in the dark about

what their teens are doing online. Teens, on the other hand, understand the value of the Internet and are

motivated to take part.

     Another finding shows that teens are not taking full advantage of the Internet. They are using the social

networks to chat and post photos and make friends, which are important to their development, but they

are not making use of other existing opportunities to learn about astronomy, foreign languages, and other

subjects only a few clicks away.

     Teens are also improving their social skills online by learning the basic social and technical skills

needed to interact (互相作用) in today's digital world.

     Pressure from those of the same age also takes on a new role online. Teens are reporting that they

are more motivated by those of their age online with public spaces that allow the teens to interact and

provide feedback to one another.

     While teens are using the Internet for both social and intellectual development, they are also facing

significant challenges on how to manage their relationships online.

1. The writer is probably ________.

A. a parent

B. a teenager

C. a teacher

D. a researcher

2. Which of the following best describes how the writer thinks about teens and online activities?

A. Supportive.

B. Objective.

C. Understandable.

D. Negative.

3. Which of the following is NOT mentioned in the passage?

A. Internet is a source of learning for teens.

B. Outside classroom learning is equally valuable.

C. Teens need to learn more effectively online.

D. Parents should also learn to use Internet.

4. How many specific(确切的) findings are listed in this passage?

A. Two.

B. Three.

C. Four.

D. Five.

单项选择题