问题 单项选择题

患者,男,20岁。食欲减退伴低热,咳嗽2个月,经一般抗菌治疗无效。X线检查见右肺中叶云雾状阴影,相应淋巴管增粗与肺门淋巴结肿大。应首先考虑的是()

A.肺炎

B.肺结核

C.肺癌

D.慢性支气管炎

E.慢性支气管炎急性发作

答案

参考答案:B

解析:患者青少年,食欲减退伴低热,咳嗽2个月,经一般抗菌治疗无效。提示非一般细菌感染,因此肺炎不支持;另外,患者青年,病史2月,且X线未提示边界清晰的影像资料,肺癌应排除;慢性支气管炎一般X线检查大致正常,且一般无发热,本病可除外。而本病提示右肺中叶云雾状阴影,相应淋巴管增粗与肺门淋巴结肿大,提示为哑铃状改变,为肺结核原发综合征典型表现,且有低热、食欲减退、咳嗽,青年人,所以应首先考虑肺结核。

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