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教授于北京时间10：20从杭州（120°E、30°N）出发去太平洋某岛进行野外考察，飞机飞行了7小时40分钟到达该地，当地时间为23：20。所给图中左图为该岛等高线地形图，岛上①处有一面彩旗，常年向东南方向飘扬。读图回答问题。

图中①、②两处高差可能为（）

A.60米

B.75米

C.100米

D.125米

答案

参考答案：C

解析：

100<①<125、0<②<25，①、②两处高差介于75—125之间。选择C项。

多项选择题

据统计，2001年至2006年六年间，全国公安消防部队共有86名官兵在灭火救援和训练中牺牲，1222名官兵不同程度受伤，2007年2月初至2008年2月间又有12人因火灾扑救侦察被火围困和坠井、体能训练和考核发心脏病、训练中被车撞击、保护绳烧断坠落、火场中消防车碰撞挤压而死亡。

这些事故反映了我们以往执勤业务训练存在一定问题，尤其着重强调“米、秒”的训练模式弊端严重，主要表现在（）

A、大量挤占装备、作战对象和作战安全养成等基本训练项目时间

B、极大影响了消防员基本能力的形成

C、养成消防指战员毛糙习气、作战安全弱化

D、导致体能素质、心理承受能力的下降
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     Everyone in business has been told that success is all about attracting and retaining(留住)customers.It
sounds simple and achievable.But,__1__,words of wisdom are soon forgotten.Once companies have
attracted customers they often__2__ the second half of the story.In the excitement of beating off the
competition,negotiating prices,securing orders,and delivering the product,managers tend to become carried away.They forget what they regard as the boring side of business-__3__that the customer remains a
customer.
      __4__ to concentrate on retaining as well as attracting customers costs businesses huge amounts of
money annually.It has been estimated that the average company loses between 10 and 30 percent of its
customers every year.In constantly changing __5__,this is not surprising.What is surprising is the fact that
few companies have any idea how many customers they have lost.
Only now are organisations beginning to wake up to these lost opportunities and calculate the__6__
implications.Cutting down the number of customers a company loses can make a big  __7__ in its
performance.Research in the US found that a five percent decrease in the number of defecting(流失的)
customers led to __8__ increases of between 25 and 85 percent.
In the US,Domino's Pizza estimates that a regular customer is worth more than $5,000 over ten years.A
customer who receives a poor quality product or service on their first visit and __9__ never returns,is
losing the company thousands of dollars in __10__ profits (more if you consider how many people they
are likely to tell about their bad experience)．
     The logic behind cultivating customer __11__ is impossible to deny."In practice most companies'
marketing effort is focused on getting customers,with little attention paid to __12__ them",says Adrian
Payne of Cornfield University's School of Management."Research suggests that there is a close relationship between retaining customers and making profits.__13__ customers tend to buy more,are predictable and
usually cost less to service than new customers.Furthermore,they tend to be less price __14__,and may
provide free wordofmouth advertising.Retaining customers also makes it__15__ for competitors to enter
a market or increase their share of a market."
( )1．A.in particular
( )2．A.emphasize  
( )3．A.denying  
( )4．A.Moving        
( )5．A.markets  
( )6．A.cultural
( )7．A.promise
( )8．A.cost  
( )9．A.as a result
( )10．A.huge
( )11．A.beliefs
( )12．A.altering  
( )13．A.Assumed
( )14．A.agreeable
( )15．A.unfair  		B．in reality      
B．doubt            
B．ensuring        
B．Hoping          
B．tastes          
B．social          
B．plan            
B．opportunity      
B．on the whole    
B．potential        
B．loyalty          
B．understanding    
B．Respected        
B．flexible        
B．difficult        		C．at least  
C．overlook  
C．arguing  
C．Starting      
C．prices  
C．financial
C．mistake
C．profit
C．in conclusion
C．extra
C．habits  
C．keeping
C．Established
C．friendly
C．essential 		D．first of all    
D．believe          
D．proving          
D．Failing          
D．expenses        
D．economical      
D．difference      
D．budget          
D．on the contrary  
D．reasonable      
D．interest        
D．attracting      
D．Unexpected      
D．sensitive        
D．convenient      
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