问题 单项选择题 B型题

病变好发于回盲部().

A.肠结核

B.大肠癌

C.克罗恩病

D.肠易激综合征

E.溃疡性结肠炎

答案

参考答案:A

解析:1.肠结核好发于回盲部,其他部位依次为升结肠、空肠、横结肠、降结肠、阑尾、十二指肠和乙状结肠等处,少数见于直肠。2.溃疡性结肠炎好发于直肠和乙状结肠,可扩展至降结肠、横结肠。3.克罗恩病好发于回肠末端和邻近右侧结肠,可累及全消化道。4.我国大肠癌好发部位约半数以上位于直肠,约1/5位于乙状结肠。

阅读理解

阅读理解。

       Mobile phone has become a problem for middle schools. Some middle schools in Australia

have banned (禁止) students from carrying mobile phones during school hours.

       Mobile phone use among children has become a problem for the schools this year. Several

children have got mobile phones as Christmas presents, and more students want them.

       Mary Bluett, an official (官员) said mobile phone use is a distraction (分心) to students during

school hours and it also gives teachers so much trouble in their classrooms. Teachers were also

saying that sometimes students might use phone messages to cheat (作弊) during exams.

       The official said some schools had tried to ban mobile phones. Some parents felt unhappy

because they couldn't get in touch with their children.

       Many teachers said students should not have mobile phones at school, but if there was a good

reason, they could leave their phones at school office. They also said there were many reasons why

the students should not have mobile phones at school: they were easy to lose and were a distraction

from studies.

       Many people say that they understand why parents would like their children to have phones, but

they think schools should let the students know when they can use their mobile phones.

1. Have some middle schools in Australia banned students from carrying mobile phones at school?

    ______________________________________

2. Probably from whom did some children get mobile phones?

    ______________________________________ 

3. What did some students use phone messages to do? 

    ______________________________________

4. Why did some parents feel unhappy about banning mobile phones at school? 

    ______________________________________

5. Can students use mobile phones for some special reasons?

     ______________________________________

单项选择题