问题 单项选择题 A1/A2型题

患者,男性,15岁,贫血、乏力,面色苍白,肝脾肿大。血红蛋白70g/L,血片见正常和低色素红细胞及少数中、晚幼粒细胞,红细胞渗透脆性减低,骨髓环状铁粒幼红细胞达45%,其诊断可能为().

A.溶血性贫血

B.缺铁性贫血

C.巨幼红细胞性贫血

D.地中海贫血

E.铁粒幼红细胞性贫血

答案

参考答案:E

解析:铁粒幼细胞贫血时,出现较多环铁粒幼细胞,铁粒幼细胞也增多,其所含铁颗粒的数目也较多,颗粒也粗大,有时还可见铁粒红细胞。铁染色可作为诊断铁粒幼细胞贫血的重要方法。

解答题
阅读理解

Knowing the best way to study will help you to be a better student.By using your time properly,you can do your homework more quickly.Learning to stuady is not difficult.

The first thing to remember is that you must be willing to learn.It doesn’t mean that you must always like the subject.It does mean,however,that you must be willing to do whatever is necessary to learn.Try to understand why it is important and how it will help you now and later to do and learn other things.Knowing mathematics facts will be useful in your whole life.Knowing how to spell makes any kind of writing easier.Sometimes a subject that you think is going to be uninteresting will be exciting when you begin to work at it and understand it more clearly.Learning things can be fun if you are willing to work with them.

Here’s some advice for you:have a certain time each day and a quiet place with good lighting for study,so that you can concentrate(集中)on your study without interruptions(中断,打断);have everything ready before you sit down to study—a dictionary,paper,a pen and books;be sure you understand what you should learn before you start;read carefully and pay special attention to the most important things;when memorizing(记忆), first find out the main parts and then recite(背诵)the whole thing;check your homework after you finish it:never forget the importance of review and preview

小题1:The main idea of the text is         

A.to prove that learning is not difficult

B.to make the readers be interested in study

C.to tell the importance of self-teaching

D.to tell the students how to study well小题2:The first thing to remember in studying is that         

A.you must like the subject

B.you must follow the teacher

C.you must enioy learning

D.you must study hard小题3:What does the underlined word“preview”mean?

A.To go over.

B.To review again.

C.To view in advance.

D.To discuss.小题4:Which of the following is NOT the advice given in the text?

A.To put a pen,paper and books beside you before study.

B.To study at any possible time and place.

C.To review and preview.

D.To pay attention to the most important things。