从导游知识类型来分，不同游客的礼俗禁忌属于—A．史地文化知识 B．心理学知识 C．生

在探讨某职业工人接触某化学物质后发生某种癌症的队列研究中，得到以下结果：癌症（人数）非癌症（人数）合计：暴露组103040；非暴露组20440460；合计30470500。

在该研究中，由此化学物质所致该癌症的特异危险度估计值为（）。

A.0

B.0.2

C.0.5

D.0.8

E.不能计算

甲亢¹³¹I治疗前的必要的检查包括（）

A.甲状腺激素测定

B.TSH测定

C.甲状腺核素显像

D.甲状腺CT检查

E.甲状腺吸¹³¹I率

阅读理解。

     Informal conversation is an important part of any business relationship. Before you start a discussion,

however, make sure you understand which topics are suitable and which are considered taboo (禁忌) in

a particular culture. Latin Americans enjoy sharing information about their local history,art,and customs.

You may expect questions about your family, and be sure to show pictures of your children. You may feel

free to ask similar questions of your Latin American friends. The French think of conversation as an art

form, and they enjoy the value of lively discussions as well as disagreements. For them, arguments can be

interesting-and they can cover pretty much or any topic-as long as they occur in are spiteful and intelligent

manner.

     In the United States, business people like to discuss a wide range of topics, including opinions about work,

family, hobbies, and politics. In Japan, China, and Korea, however, people are much more private. They do

not share much about their thoughts, feelings, or emotions because they feel that doing so might take away

from the harmonious business relationship they're trying to build. Middle Easterners are also private about

their personal lives and family matters. It is considered rude, for example, to ask a businessman from Saudi

Arabia about his wife or children.

     As a general rule, it's best not to talk about politics or religion with your business friends. This can get

you into trouble, even in the United States, where people hold different religious views. In addition, discussing

one's salary is usually considered unsuitable. Sports is typically a friendly subject in most parts of the world,

although be careful not to criticize fl national sport. Instead, be friendly and praise your host's team.

1. The author considers politics and religion _____.

A. cheerful topics

B. taboo

C. rude topics

D. topics that can never be talked about

2. Which is typically a friendly topic in most places according to the author?

A. Sports.

B. Children.

C. Personal feelings.

D. Families.

3. Why are people from Asia more private in their conversation with others?

A. They don't want to talk much with others.

B. They don't want to have their good relationship with others harmed by informal conversation.

C. They are afraid to argue with their colleagues.

D. They want to keep their feelings to themselves.

4. What shouldn't you do when talking about sports with colleagues from another country?

A. Praising your own country's sports.

B. Criticizing your own country's sports.

C. Praising the sports of your colleagues' country.

D. Criticizing the sports of your colleagues' country.

锅炉负荷的变化对汽包水位有何影响？

《国家电网公司供电客户服务提供标准》第五条第1款第6.2点规定：供客户操作使用的服务设施，如发生故障不能使用，应摆设“设备维修中”标志牌，并在（）内修复。

A、30个工作日

B、15个工作日

C、15天

D、30天