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问题 多项选择题

我国新的社会阶层包括（）

A.个体户、私营企业主

B.自由职业者

C.知识分子

D.受聘于外资企业的管理技术人员

答案

参考答案：A, B, D

单项选择题 共用题干题

一周前，某患者以食物嵌塞痛为主诉，就诊，当时诊断为深龋，并行垫底，银汞合金充填，术后患者出现冷热刺激敏感，无自发痛及咬合痛，请问

造成患者术后出现冷热刺激敏感症状的原因有以下可能，除了（）

A.备洞过程的机械刺激

B.垫底不完善

C.术前误诊

D.对颌牙有异种金属修复体

E.患者有遗漏的龋洞
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Below are some choices to getting around London by public transportation

Tubes
The London Underground, commonly referred to as the 'Tube', is the oldest and most extensive
underground system in the world and pervades(遍及)both the life and layout of London. Twelve
underground lines, each with a different name and colour, are supplemented by the privately operated
Docklands Light Railway (tel: (020) 7363 9700) connecting the City of London and the Docklands.
The entire network is divided into six concentric zones, which determine the price of tickets. In the
city centre (zone one) a single ticket costs ￡1.50, otherwise single fares are ￡0.90 (one zone) up
to ￡2.20 (four zones). Carnets of ten zone-one tickets cost ￡11. Tickets must be passed through the
barrier ticket gates in order for the passenger to enter and leave the system (and avoid a ￡10 penalty
(损失)fare). The London Underground runs 05:30-24:30 but should be avoided (where possible)
during rush hour - 08:00-09:30 and 17:00-18:30 Monday to Friday.
Double-decker buses
London's famous red 'Routemaster' double-decker buses are slowly being replaced by more modern
single and double deckers. There are now only two fare zones. Any journey that includes the city centre
zone is ￡1 and any journey outside this zone is 70p. Tickets are bought from the driver or bus conductor
upon boarding and there is a ￡5 fine for travelling without a valid ticket. Carnets of six tickets (for any
zone) can be purchased for ￡3.90.
Ferries
There are a number of services operating on the Thames. Commuter ferries between the Savoy Pier
(Embankment) and Greenland Pier (Greenwich) are run by Collins River Enterprises (tel: (020) 7977
6892; website: www.thamescat.com. Fares cost between ￡1.50 and ￡2.70 for a single and ￡2.50 and
￡4.70 return. Riverside Launches (tel: 020 7352 5888) operate a commuter service between Chelsea/
Cadogan and Embankment for ￡4 (single) or ￡8 (return). These commuter services operate between
Monday and Friday 06:35-19:44. Once in London, there are a number of passes available,  including
the One-day Travelcard for ?4 (used after 09:30 Monday to Friday and all day Saturday and Sunday)
and the ￡6 Weekend Travelcard, which is used on Saturday and Sunday(or public holidays). Weekly,
monthly and annual passes must be accompanied by a photocard. Tickets can be purchased at the
station - carnets and some passes can be bought at participating newsagents and supermarkets.

      Once in London, there are a number of passes available,  including the One-day Travelcard for ￡4
(used after 09:30 Monday to Friday and all day Saturday and Sunday) and the ￡6 Weekend Travelcard,
which is used on Saturday and Sunday (or public holidays). Weekly, monthly and annual passes must be
accompanied by a photocard. Tickets can be purchased at the station - carnets and some passes can be
bought at participating newsagents and supermarkets
1. How much money will 8 tourists pay at least if they want to travel by tube in the downtown?                   
A. ￡12       
B. ￡11        
C .￡32          
D. ￡36.8  
2. Where can a tourist buy a ticket if he wants to get to the zone one by double-decker bus?      
A. in newsagents                      
B. in supermarkets                          
C. on the double-decker buses          
D. in the office of Collins River Enterprises      
3. If you want to take ferries from Chelsea to Greenland Pier and then return to Embankment, how much
will you pay for the tickets at most?                                        
A. ￡7          
B. ￡9.4            
C. ￡6.5          
D. ￡8.7                        
4. It can be learned from the passage that_____.                                     
A. All London underground lines belong to the state.
B. Double-decker buses are becoming more and more popular
C. people can take ferries everyday in London.
D. tourists have to use Weekly, monthly and annual passes together with photocards
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