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问题 单项选择题

分离空肠弯曲菌常用的培养基为（）

A.改良Skirrow培养基

B.TCBS培养基

C.SS培养基

D.MaC培养基

E.GN培养基

答案

参考答案：A

解析：空肠弯曲菌营养要求高，在普通培养基上不生长。需加入血液、血清才能生长。常用的选择培养基有Skirrow琼脂、Butzler培养基和Campy-BAP培养基。

阅读理解

阅读理解。

     One day. Mr Li and Mr King go to London to see their friend. They don't know much English and London.

They can't find their friend' s home. They walk in the street for a longtime. Then they see a man near a bus

stop. They go up to him and ask the way. The man smiles but says nothing. Then he puts his hand into his

pocket (口袋) and takes out a book. He opens the book and reads, "I'm sorry, I can't speak English.". In the

evening, they find their friend's home with the help of a policeman.

1. Where did Mr Li and Mr King go one day?

A. their home

B. a bus stop

C. their friend's home

D. the police station

2. Do they know London well?

A.Yes, they do.

B. No, they aren't.

C. No, they don't.

D. Yes, they are.

3. What does the man take out when they ask him the way?

A. a pocket

B. nothing

C. a book

D. a pen

4. The man doesn't help them because __________.

A. he doesn't like them.

B. he doesn't know them

C. he can't speak English

D. he wants to go home.

5. Who helps them find their friend's home?

A. the man

B. the book

C. a policeman.

D. their friend.

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单项选择题 案例分析题

小孙是一位在校的大学生，从未进行过炒股等投资活动，最近看到了股票市场的投资价值，也准备开户进行股票投资，之前先就相关问题咨询了理财规划师。

从股票投资的风险来分析，如果是因为上市公司股东与管理者的委托一代理关系而产生了管理者行为对股东利益造成损害的风险，属于（）。

A.系统性风险

B.经营风险

C.信用风险

D.道德风险
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