问题 单项选择题 A1型题

常用于检查大多数线虫卵的实验室方法是()。

A.肉眼观察

B.直接涂片法

C.饱和盐水漂浮法

D.虫卵沉淀法

E.幼虫培养法

答案

参考答案:C

解析:寄生于消化道与呼吸道的绝大多数线虫、吸虫和绦虫所产生的卵、幼虫或孕节(绦虫)会随粪便排出体外,因此,一般利用粪便检查来诊断消化道与呼吸道寄生虫病。粪便检查方法主要有直接涂片法、虫卵漂浮法、虫卵沉淀法。其中虫卵漂浮法常用饱和盐水漂浮法,主要用于检查线虫卵、球虫卵等。因此,常用于检查大多数线虫卵的实验室方法是饱和盐水漂浮法。

阅读理解

Japanese couples,too busy for a normal social life,are increasingly turning to actors to play their friends on the most important days of their lives.

Several agencies have sprung up (涌现) offering actors to attend weddings or even funerals.The first guest-for-hire company was established about nine years ago and around 10 now send out dozens of pretend friends to family events.

Agencies such as Hagemashi Tai —— which means “I want to cheer you up” —— charge around £100 for each “guest”.Other services such as giving a speech in praise of a bride or the groom cost extra.

The appearance of the small fake friends industry has been linked to social and economic changes in Japan.With lifetime employment (终身雇佣制) a thing of the past,couples feel uncomfortable about inviting work colleagues to their wedding.Increasingly busy and stressed out,many Japanese surround themselves with only a very small circle of friends.

When they marry,however,they are under pressure to match the number of their new partner’s wedding guests.Office Agents,the largest provider of pretend friends,makes sure that its employees have done their homework and know all about the bride or groom before the wedding.

Hiroshi Mizutani,the company’s founder,said the fake friends he provides must look happy,be well dressed and look like people with good jobs.

小题1:Why did fake friends industry come into being in Japan?

A.Because of social and economic changes.

B.Because of lifetime employment.

C.Because of normal social life.

D.Because of work pressure..小题2:Pretend friends will be present on the following occasions except __________ .

A.weddings

B.funerals

C.work

D.family gathering小题3:The agents make sure that fake friends __________ .

A.have done their housework

B.have good jobs

C.must look happy and be well dressed

D.feel uncomfortable小题4:What is the main idea of this passage?

A.Japanese couples are under pressure to get married.

B.The first guest-for-hire company in Japan started.

C.Japanese couples’ social life is boring.

D.Japanese couples rely on fake friends.

判断题