问题 问答题

[生物—选修1:生物技术实践](15分)临床试用抗生素前,有时需要做细菌耐药实验。实验时,首先要从病人身上获取少量样本,然后按照一定的实验步骤操作,以确定某致病菌对不同抗生素的敏感性。回答下列问题:

为了从样本中获取致病菌菌落,可用_______法或_________法将样本借种于固体培养基表面,经过选择培养、鉴别等步骤获得。

答案

参考答案:划线 稀释涂布(或涂布)

解析:【解析】:本题考查微生物的培养和应用。分离菌落常用稀释涂布平板法或划线涂布法。

填空题
阅读理解

阅读理解

     The early 1900s were very different from today. Toys, though they have evolved in many ways,

were still the delight of children everywhere.

     Theodore Roosevelt's Presidency marks the beginning of the "Teddy Bear". In the year 1902, toy

bears were named "Teddy" after the president's nickname.The Teddy Bear became known worldwide,

and is still known and loved today.It was only a few years later that the Teddy Bears were mass

produced.

     In 1913, an item called the Erector Set was invented.It was a steel, motorized toy that children could

use to build models of anything.Its creator was A. C.Gilbert, a medical doctor.

     Charles Pajeau created a similar wooden set called Tinker Toys in the year 1914. Tinker Toys were

made for younger children.

     Raggedy Ann dolls first came on the scene after newspaper cartoonist Johnny Gruelle reproduced the

doll he made for his daughter. That was in 1915.

     The following year, an architect's son named John Lloyd Wright, invented Lincoln Logs, which were

interlocked to make structures.

     Two years after Mickey Mouse was created,stuffed(填塞)Mickey Mouse dolls were made by

Charlotte Clark.This was the start of Disney merchandise.

     The yoyo became popular in the United States after Donald Duncan bought a yoyo company in 1929.

     The ViewMasterm, a three dimensional viewer, was developed by a camera enthusiast named

William Gruber. The toy became popular when Gruber licensed Disney characters to make still, 3D

images from Disney movies and television programs.

     Finally, in 1940, model airplanes were mass produced. They started out as a way for manufacturers

to sell planes to the military, but later caught on as a toy.

     The toys that we know and love today have had their roots from these ancient times. Isn't it

interesting to know that if it hadn't been for all these creative people, most of the games you know today

would never have been?

1. Why were toy bears named "Teddy"?

A. To be suitable for mass production.

B. To be easily pronounced by children.

C. To meet the advertisers' needs.

D. To memorize President Theodore Roosevelt.

2. In which aspect do the toys created by Gilbert differ from those by Charles?

A. Shape.  

B. Material used.

C. Themes.  

D. Price.

3. When did the ViewMaster become popular?

A. After William Gruber was born.

B. After Gruber licensed Disney characters.

C. Two years after Mickey Mouse was created.

D. When Disney merchandise was started.

4. What does the passage talk about?

A. The function of toys.

B. The history of Disney characters.

C. Toys in the early 1900s.

D. The financial meaning of toys.