问题 单项选择题

关于儿童皮肌炎,哪项是错误的()。

A.在皮肤、皮下组织关节附近及病变肌肉处易见钙质沉积

B.合并恶性肿瘤者较少

C.预后较成人差

D.60%的儿童皮肌炎患者可有低滴度的ANA

E.雷诺现象少

答案

参考答案:C

解析:与成人皮肌炎相比,儿童型皮肌炎较少伴发恶性肿瘤,易发生皮肤、皮下组织、关节周围及肌肉的钙沉积,雷诺现象少见。

阅读理解

阅读理解。

     We live in a digital world now, and a student's technology needs have changed. For the early years, say

when you are in primary school, you can get by with no technology at all. Even if you have a computer, it's a

good idea to get children familiar with libraries. At this age, trips to the library are like family outings.

     As you get closer to middle school, a computer with Internet access becomes more of a necessity.

Teachers will often give assignments that require a student to use the Internet for research. After a computer,

technology choices for students become more difficult to make - especially when it comes to cellphones. Kids

will beg their parents for a cell-phone, especially in middle school. For many parents, it's a safety issue: They

want to know that their kids can reach them quickly if necessary. For teachers, cell phones can be used to

record lessons when students are absent. But many teachers dislike cell-phones. Some kids send messages or

have talks in the class. Sending messages also raises the problem of cheating on exams. More and more schools are now forbidding the use of cellphones.

     Many kids see iPods as necessary things to have. iPods are great for music, but do they do anything good

for your children's education? Maybe they do. That's the opinion of Doug Johnson, an educator for 30 years.

Johnson says that educators should accept all new forms of technology in the classroom, including iPods.

"Some do more with their cell- phones than we can do with our laptops," he jokes."I don't think we should be

afraid. The truth is that it's easier to change the way we teach than to change the technology habits of an entire

generation."

1. According to author, primary school children should _____. 

A. use the computer and the Internet regularly

B. ask their parents to buy them cell-phones

C. buy iPods to listen to music

D. go to libraries to read more books

2. Why do parents agree to buy their children cell-phones?

A. They want their children to be cool.

B. They think cell-phones be helpful to their study.

C. They want to keep in touch with their children.

D. They want their children to keep up to date.

3. The following are all reasons why many teachers dislike cell-phones EXCEPT ______.

A. cell-phones can be used to cheat on exams

B. schoolchildren will send messages during class

C. cell-phones can be used to record lessons

D. schoolchildren might talk on them during class

4. What does the underlined word "that" refers to?

A. iPods can be used to listen to music.

B. iPods can be helpful for children's education.

C. iPods can be used to play games.

D. iPods are necessary for children's lives.

5. We can infer from what Doug Johnson said that _______.

A. cell-phones are not useful to students

B. teachers should let students use cell-phones

C. it's better for teachers to change their teaching methods

D. schoolchildren should follow the trends(潮流) of fashion

单项选择题