问题 单项选择题

下列不是新型隐球菌特性的是( )

A.革兰阳性,外包厚荚膜

B.标本可直接用墨汁负染色后镜检

C.在沙氏培养基上形成酵母型菌落

D.在营养丰富的培养基上形成假菌丝

答案

参考答案:D

解析:新型隐球菌革兰染色阳性,呈球形,外有宽厚荚膜,折光性强,不易被一般染料所着色,通常用墨汁负染色镜检,营养要求一般,在沙保或血琼脂培养基上于25℃和37℃下皆可生长,几天后生成酵母型菌落。

阅读理解

Reading comprehension.

     The teacher who did the most to encourage me was, as it happened, my aunt. She was Myrtle C.

Manigault, the wife of my mother's brother Bill. She taught in second grade at all-black Summer School

in Camden, New Jersey.

     During my childhood and youth, Aunt Myrtle encouraged me to develop every aspect of my potential,

without regard for what was considered practical or possible for black females. I liked to sing; she listened

to my voice and pronounced it good. I couldn't dance; she taught me the basic dancing steps. She took me

to the theatre not just children's theatre but adult comedies and dramas-and her faith that I could appreciate

adult plays was not disappointed.

     My aunt also took down books from her extensive library and shared them with me. I had books at home,

but they were all serious classics. Even as a child I had a strong liking for humor, and I'll never forget the

joy of discovering Don Marquis's Archy & Mehitabel through her.

     Most important, perhaps, Aunt Myrtle provided my first opportunity to write for publication. A writer

herself for one of the black newspapers, she suggested my name to the editor as a "youth columnist". My

column, begun when I was fourteen, was supposed to cover teenage social activities-and it did-but it also

gave me the freedom to write on many other subjects as well as the habit of gathering material, the discipline

of meeting deadlines, and, after graduation from college six years later, a solid collection of published material

that carried my name and was my passport to a series of writing jobs.

     Today Aunt Myrtle is still an enthusiastic supporter of her "favourite niece". Like a diamond, she has

reflected a bright, multifaceted (多面的) image of possibilities to every pupil who has crossed her path.

1. Which of the following did Aunt Myrtle do to the author during her childhood and youth?

A. She lent her some serious classics.

B. She cultivated her taste for music.

C. She discovered her talent for dancing.

D. She introduced her to adult plays.

2. What does Archy and Mehitabel in Paragraph 3 probably refer to?

A. A book of great fun.

B. A writer of high fame.

C. A serious masterpiece.

D. A heartbreaking play.

3. Aunt Myrtle recommended the author to a newspaper editor mainly to _____.

A. develop her capabilities for writing

B. give her a chance to collect material

C. involve her in teenage social activities

D. offer her a series of writing jobs

4. We can conclude from the passage that Aunt Myrtle was a teacher who _____.

A. trained pupils to be diligent and well-disciplined

B. gave pupils confidence in exploiting their potential

C. emphasized what was practical or possible for pupils

D. helped pupils overcome difficulties in learning

单项选择题