Transport plays an important part in international business because goods produced have to be delivered to the buyers abroad, and the delivery of goods is to be made possible by transport services. Goods are carried by several means of transport----on road or rail, by sea or air. And in recent years, combined transport which is a road-sea-rail carriage appeared. With the expansion of international trade, the container service has become popular. The use of containers provides a highly effective form of transport by road, rail and sea. Basically, about 98% of world trade is carried out by sea transport. Besides transport by sea, road, or rail, nowadays in order to speed up delivery, carriage by air has also become popular.1-1.Transport plays an important part in international business because goods produced have to be sent to everywhere in the world.A、√B、×1-2.In recent years, combined transport which is a road-sea-rail carriage appeared.A、√B、×1-3.With the expansion of international trade, the combined transport service has become popular.A、√B、×1-4.The use of containers gives a very helpful method of transport.A、√B、×1-5.Today carriage by air has become popular because it can speed up delivery.A、√B、×

第1题

A freight forwarder plays an important role in international transport only．（）

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第2题

The combination of transport by sea and rail or road plays a leading role in muhi

modal transportation．（）

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第3题

Rail transport plays quite a different role compared with road transport in the d

omestic economy of a country．（）

此题为判断题(对，错)。

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第4题

When the system upon which a transport entity is running fails and subsequently restarts,

the(66)information of all active connections is lost. The affected connections become half-open, as the side that did not fail does not yet realize the problem.The still active side of a half-open connection can close the connection using a(67)timer. This timer measures the time the transport machine will continue to await an(68)of a transmitted segment after the segment has been retransmitted the maximum number of times. When the timer(69), the transport entity assumes that either the other transport entity or the intervening network has failed. As a result, the timer closes the connection, and signals an abnormal close to the TS user.In the event that a transport entity fails and quickly restarts, half-open connections can be terminated more quickly by the use of the RST segment. The failed side returns an RST i to every segment i that it receives. When the RST i reaches the other side, it must be checked for validity based on the(70)number i, as the RST could be in response to an old segment. If the reset is valid, the transport entity performs an abnormal termination.

A．data

B．state

C．signal

D．control

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第5题

when the system upon which a transport entity is running fails and subsequently reatarts，t

he（）information of all active connections is lost.the affected connections become half-open，as the side that did not fail does not yet realize the promble. The still active side of a half-open connections using a（）timer.this timer measures the time transport machine will continue to await an（）of a transmitted segment after the segment has been retransmitted the maximum number of times.when the timer（），the transport entity assumes that either the other transport entity or the intervening network has failed.as a result，the timer closes the connection，and signals an abnormal close to the TS user. In the event that a transport entity fails and quickly restart，half-open connections can be teminated more quickly by the use of the RST segment.the failed side returns an RST I to every segment I that it receives.when the RST I reaches the other side，it must be checked for validity dased on the （）number I，as the RST could be in response to an old segment .if the reset is valid，the transport entity performs an abnormal termination.

A.data B.state C.signal D.control A.give-up B.abandon C.quit D.connection A.reset B.acknowledgment C.sequence D.synchroizer A.stops B.restarts C.expires D.abandons A.sequence B.acknowledgment C.connection D.message

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第6题

The network layer provides services to the transport layer．It can be based on either （1)．I

The network layer provides services to the transport layer．It can be based on either (1)．In both cases，its main job is (2) packets from the source to the destination．

In network layer，subnets can easily become congested，increasing the delay and (3).

for packets．Network designers attempt to avoid congestion by proper design．Techniques include (4) policy，caching，flowcontrol，and more．

The next step beyond just dealing with congestion is to actually try to achieve a promised quality of service．The methods that can be used for this include buffering at the client，traffic shaping，resource (5)，and admission control．Approaches that have been designed for good quality of service include integrated services(including RSVP) ，differentiated services， and MPLS．

(1)

A．virtual circuits or datagrams

B．TCP or UDP

C．TCP or IP

D．IP or ARP

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第7题

Business English HelpsEnglish plays an important role in the workplace.When it is used i

Business English Helps

English plays an important role in the workplace.When it is used in the correct and proper 31,it can help to promote a career or a business.Some may 32 or want to study business English 33 they start their careers.Those who are already working have the 34 to see what they can and cannot do 35 in English in their current job.

Business English provides you with valuable skills needed for your work.For example, you will learn 36 to negotiate.Being able to deal with a 37 and knowing how to bargain and 38 an agreement can make a 39 difference to the outcome.

Business English learning encourages professional and efficient communication, and promotes service to customers and business partners, 40 is a great advantage for any business.

A.big

E.reach

I.way

B.need

F.which

J.how

C.what

G conflict

K.small

D.before

H.effectively

L.opportunity

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第8题

I was desperately nervous about becoming car-free. But eight months ago our elderly people

carrier was hit by a passing vehicle and the damage was so bad it had to be written off. No problem, I thought: well buy another. But the insurance payout didnt even begin to cover the costs of buying a new car—I worked out that, with the loan wed need plus petrol, insurance, parking permits and tax, we could easily be looking at around ￡600 a month. And thats when I had my fancy idea. Why not just give up having a car at all？ The more I thought about it, the more sensible it seemed. I live in London. We have a railway station behind our house, a tube station 10 minutes walk away, and a bus stop at the end of the street. A new car club had just opened in our area, and one of its shiny little red Peugeots was parked nearby If any family in Britain could live without a car, I reasoned, then surely we were that family？ But my new car-free passion, sadly, wasnt shared by my family. My teenage daughters were horrified. What would their friends think about our family being "too poor to afford a car"？(I wasnt that bothered what they thought, and I suggested the girls could take the same approach.) My friends, too, were astonished at our plan. What would happen if someone got seriously ill overnight and needed to go to hospital？(an ambulance？)How would the children get to and from their many events？(buses and trains？)People smiled indulgently, as though this was another of my mad ideas, before saying they were sure Id soon realize that a car wasnt a luxury, it was a necessity. Eight months on, I wonder whether well ever own a car again. The idea that you "have" to own a car, especially if you live in a city, is all in the mind. I live— and many other city-dwellers do too—in a community that has never been better served by public transport, and yet car ownership has never been higher. We worry about rising car costs, but wed be better off asking something much more basic. Do I really need a car？ The answer turned out to be no, and Im a lot richer because I dared to ask the question.

The author decided to live a car-free life______.

A．after his car was damaged beyond repair

B．after he was hurt in a terrible car accident

C．because public transport was easily accessible

D．because the traffic jam was too much for him

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第9题

When my wife and I lived in Texas, one morning, we were 1 our way home and decided to

stop at a local gas station to get some breakfast. We noticed a man standing in front of the store. We could tell that he was a 2 man, because his clothes were dirty and worn. It looked like he had gone in to get 3 warm to drink but came out with nothing. 4 he must have not had enough money.

Then we saw a dog walk up to the front of the store. It was a 5 dog - we could tell that it had been feeding puppies. She was terribly in need of something to eat. There were people 6 by and not even taking a look at her. She might not have been as 7 and clean as most, but she still deserved better. We still did not do anything, but someone did. The guy, who did not buy himself anything to eat, went back into the 8,bought a can of dog food and fed that dog.

I know that this story isn't as inspirational as most stories, but it 9 a great part in our lives. You see, that was Mother's Day weekend.A lot of people forget that some animals are 10 too. It took a straggler (流浪汉) to show me what I should have done. He made me a better man that day.

1、A、at

B、on

C、in

D、for

2、A、terrible

B、homeless

C、friendly

D、handsome

3、A、everything

B、anything

C、something

D、nothing

4、A、So

B、But

C、Since

D、If

5、A、strong

B、weak

C、female

D、male

6、A、pass

B、passed

C、to pass

D、passing

7、A、dirty

B、small

C、stupid

D、pretty

8、A、store

B、station

C、car

D、park

9、A、takes

B、spends

C、makes

D、plays

10、A、talents

B、children

C、parents

D、friends

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第10题

Harold Pinter’s plays are often called _______.

A.comedies of menace

B.comedies of manners

C.problem plays

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第11题

combined transport

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