问题 单项选择题 B1型题

溶血性黄疸()

A.直接胆红素增加,尿胆原增加,尿胆红素阳性

B.直接胆红素正常,尿胆原增加,尿胆红素阴性

C.直接胆红素正常,尿胆原阴性,尿胆红素阴性

D.直接胆红素增加,尿胆原阴性,尿胆红素阳性

E.以上都不是

答案

参考答案:B

解析:三种黄疸的胆色素代谢检查结果表本题应从黄疸的发生机制切入,绝非死记硬背表格中的内容。如结合胆红素变化,肝细胞性黄疸是由于未受损的肝细胞仍能将部分非结合胆红素(UCB)转换为结合胆红素(CB),CB一部分经从胆管排出,另一部分由于肿胀的肝细胞压迫胆小管致使排出受阻而反流入血,导致血中的CB增高。胆汁淤积性同样也是CB排出受阻而反流入血致血中的CB增高。

阅读理解

It feels like every time my mother and I start to have a conversation, it turns into an argument. We talk about something as simple as dinner plans and suddenly, my mother will push the conversation into World War III. She’ll talk about my lack of a bright future because I don’t plan to be a doctor. And much to her disappointment, I don’t want to do any job related to science, either. In fact, when I was pushed to say that I planned to major(主修) in English and communications, she nearly had a heart attack.

“Why can’t you be like my co-worker’s son?” she bemoans all the time. Her co-worker’s son received a four-year scholarship and is now earning 70,000 dollars a year as an engineer. I don’t know what to answer except that I simply can’t be like Mr. Perfect as I’ve called the unnamed co-worker’s son. I can’t be like him. I’m the type of person who loves to help out in the community, write until the sun goes down, and most of all, wants to achieve a career because I love it, not because of fame (名声) or salary(薪水).

I understand why my mother is worried about my future major. I’ve seen my mother struggle to raise me on her small salary and work long hours. She leaves the house around 6:30 a.m. and usually comes home around 5 p.m. or even 6 p.m. However, I want her to know that by becoming a doctor, it doesn’t mean I’ll be successful. I’d rather follow my dreams and create my own future.

小题1:Which of the following topics do the writer and his mother often talk about?

A.The writer’s studies.

B.The writer’s future job

C.Dinner plans

D.Wars around the world小题2:We can infer from Paragraph 1 that the writer’s mother ____________.

A.doesn’t want the writer to major in English

B.doesn’t think the writer should be a doctor

C.gets along very well with the writer

D.doesn’t think working in the science field is a good idea小题3:The underlined word “bemoans” in Paragraph 2 most probably means _____________.

A.agrees

B.shouts

C.complains

D.smiles小题4:Which of following statements is probably TRUE about the writer?

A.He wants to be like his mother’s co-worker’s son.

B.He wants to find a job in his community in the future.

C.He doesn’t think his mother’s co-worker’s son is perfect.

D.He wants to do something he really likes in the future.

单项选择题