下列现象由光的折射形成的是（ ） A．桥在水中形成“倒影” B．手在灯光下形成影

在一号信令中表示被叫用户状态的信号是（）。

A.KA信号

B.KD信号

C.A组信号

D.B组信号

患者，男，25岁，既往体健，半小时前从4m高处摔下，左胸疼痛，呼吸困难，急诊。神清合作、轻度紫绀，左前胸壁10cm×10cm皮下淤血，胸壁浮动，可触及骨摩擦，两肺未闻及湿啰音，胸片见左4、5、6肋各有两处骨折，肋膈角稍钝。

此时患者的呼吸困难主要不是（）

A.胸壁软化

B.纵隔扑动

C.静脉血回心障碍

D.精神过度紧张

E.缺氧、二氧化碳潴留

Arabs consider it extremely bad manners to start talking business immediately. Even the busiest government official always takes extra time to be polite and offer refreshments (茶点). No matter how busy you are, you should make time for this.

The conference visit is a way of doing business throughout the Arab world. Frequently, you will have to discuss your business in the presence of strangers, who may or may not have anything to do with your business. Do not be surprised if your meeting is interrupted several times by people who come into the room unannounced, whisper, or speak softly to the person with whom you are talking, and leave. Act as though you do not hear, and never show displeasure at being interrupted.

Making decisions quickly is not an Arab custom. There is a vagueness (模糊) in doing business in the Middle East which will puzzle a newcomer. Give yourself lots of time and ask lots of questions.

When an Arab says “yes”, he may mean “maybe”. When he says “maybe”, he probably means “no”. You will seldom get a direct “no” from an Arab because it is considered not polite. Instead of “no”, he will say “inshallah”, which means “if God is willing”. On the other hand, “yes” does not necessarily mean “yes”. A smile and a slow nod might be like an agreement but in fact your host is being polite. An Arab considers it rude to disagree with a guest.

小题1:The main purpose of this article is to explain _________________.

A．why you need extra time when you visit Arab countries

B．how to be polite when doing business in the Arab world

C．why Arab officials are so busy

D．what Arabs say when doing business小题2:According to the article, which of the following would be considered polite?

A．You leave angrily because of interruptions.

B．You demand an immediate decision.

C．You refuse a cup of tea and show pictures of your product right away.

D．You look out of the window while a stranger comes in to speak with your host.小题3:Which of the following is NOT an Arab custom?

A．To care less about being interrupted during their meeting.

B．Often to give you a vague answer.

C．Seldom to say “no” directly.

D．Seldom to hesitate to start talking business in the presence of strangers.

我国有：嫁出去的女儿，泼出去得水的说法，请根据婚姻法、继承法中家庭成员之间的权利义务关系的规定对这种说法进行分析。

美国的赫茨伯格是研究人的动机的又一代表人物，他提出了“双因素理论”。他的主要观点是，影响人的工作动机的有两类因素，这两类因素是（）

A.刺激因素

B.保健因素

C.激励因素

D.健康因素