As used in this passage，the word “valid” in the second paragraph means______A. foreign B.

pass IPv6 traffiC. The tunnel ha s not yet been configured on the router.Which of the following commands is not required for the configuration to pass IPv6 traffic？（）

A. tunnel source

B. tunnel destination

C. tunnel mode

D. All these commands are requireD

Parallelism is used in ________.

A、It sells us instant gratification. It diverts us only to divert, to make the time pass without pain.

B、Consider the casual assumptions that television tends to cultivate: that complexity must be avoided, that visual stimulation is a substitute for thought, that verbal precisio is an anachronism.

C、Television’s variety becomes a narcotic, not a stimulus.

D、Everything about this nation – the structure of the society, its forms of family organization, its economy, its place in the world – has become more complex, not less.

A、But there is a man in my office, a Mr. H., who proses it away from morning to night, …

B、Surely, humor is the saving grace of us, for without it we should die of vexation.

C、I stare at the reproachfully blank paper until sights and sounds become dim and confused, …

D、… and I would pass ours in tormenting sleeplessness.

h a yellow square painted on it．Which of the following is TRUE ________．

A.You should pass the buoy close aboard on either side

B.The buoy marks the end of the ICW in that area

C.You should leave the buoy to port

D.The yellow square is retroreflective material used to assist in sighting the buoy at night

o another Enterprise router for its two connectivity options back into the rest of the Enterprise network. The engineer planning for this branch decided to use the leased line for all Enterprise traffic, unless it fails, in which case the Internet connection should be used to pass traffic to the Enterprise.Which of the following is most likely to be useful on the branch router？（）

A. IPsec tunnel

B. GRE tunnel

C. Floating stati c route

D. An IGP

_______．

A.AIS cannot be used to make passing arrangements because the system is not capable of this type of ship-to-ship communications

B.AIS cannot be used to make passing arrangements because the ship-to-ship text messaging feature is for emergency use only

C.AIS can be used to make passing arrangements via ship-to-ship text messaging but a vessel operator is not relieved from the requirement to sound whistle signals or make arrangements via bridge-to-bridge radiotelephone

D.AIS can be used to make passing arrangements via ship-to-ship text massaging thus relieving a vessel operator from making such arrangements via bridge-to-bridge radiotelephone or signaling intent to pass via whistle signals

听力原文： When the words "without recourse" or words with similar meaning are used as part of the endorsement, such endorsement is referred to as qualified endorsement. The purpose of this type of endorsement is to limit the endorser's liability. The qualified endorsee, however, may look to all other parties prior to the qualified endorser. Under the UCP, the term "signature" also includes marks and thumbprints and printed, typed, or stamped signatures are acceptable in addition to writ ten ones. The rule also applies to endorsements. In the United States. the endorsement on an instrument need not necessarily be applied by the previous holder.

28．What's the purpose of qualified endorsement？

29.About the qualified endorsees, which of the f10llowings is true？

30.According to UCP, what does the term "signature" include？

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A．To pass the full title to the endorsee.

B．To inform. the importer's bank to negotiate.

C．To strengthen the liability of the endorsee.

D．To limit the endorser's liability.

Consider the query:Mysql＞ SET @run = 15;Mysql＞ EXPLAIN SELECT objective, stage, COUNT (stage)FROM iteminformationWHERE run=@run AND objective=’7.1’GROUP BY objective,stageORDER BY stage;The iteminformation table has the following indexes;Mysql＞ SHOW INDEXES FROM iteminformation:This query is run several times in an application with different values in the WHERE clause in a growing data set.What is the primary improvement that can be made for this scenario？（）

A.Do not pass a user variable in the WHERE clause because it limits the ability of the optimizer to use indexes

B.Add an index on the objective column so that is can be used in both the WHERE and GROUP BY operations

C.Drop the run_2 index because it has caused a conflict in the choice of key for this query

D.Execute the run_2 index because it has caused a conflict in the choice of key for this query

E.Add a composite index on (run,objective,stage) to allow the query to fully utilize an index

听力原文： One winter day in 1891, a class at the training school in Massachusetts, USA, went into the gym for their daily exercises. Since the football season had ended, most of the young man felt they were in for a boring time. But their teacher James Nasmyth had other ideas. He had been working for a long time on a new game that would have the excitement of American football. Nasmyth showed the men a basket he had hung at each end of the gym and explained that they were going to use around European football At first, everybody try to throw ball into the basket no matter where he was standing .Pass ! Pass! Nasmyth kept shouting, blowing his whistle to stop the excited players. Slowly, they began to understand what was wanted of them. The problem with the new game, which was soon called basketball, was getting the ball out of the basket. They used ordinary fruit baskets with bottoms, and the ball, of course, stayed inside. At first, someone had to clime up every time a basket was scored. It was several years before someone came up with the idea of removing the bottom of the basket and letting the ball fall through. There have been many changes in the rules since then and basketball has become one of the world's most popular sports.

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A．He took them to watch a basketball game.

B．He trained them to play European football.

C．He let them compete in getting balls out of a basket.

D．He taught them to play an exciting new game.

the gym for their daily exercises. Since the football season had ended, most of young men felt they were in for a boring time. But their teacher, James Naismith, had other ideas. He had been working for a long time on the new game that would have the excitement of American football. Naismith showed the men a basket he had hung at each end of the gym, and explained that they were going to use a round European football. At first everybody tried to throw the ball into the basket no matter where he was standing. “Pass! Pass!” Naismith kept shouting, blowing his whistle to stop the excited players. Slowly, they began to understand what was wanted of them. The problem with the new game, which was soon called “basketball”, was getting the ball out of the basket. They used ordinary baskets, with bottoms, and the ball, of course, stayed inside. At first, someone had to climb up every time when a basket was scored. It was several years before someone came up with the idea of removing the bottom of the basket and letting the ball fall through. There have been many changes in the rules since then, and basketball had become one of the world’s most popular sports.

1、 When did the story happen？

AIn spring

BIn summer

CIn fall

DIn winter

2、 What did Naismith do to entertain his students one day？

AHe taught them to play an exciting new game

BHe took them to watch a basketball game

CHe trained them to play European football

DHe let them compete in getting balls out of a basket

3、 According to the write, what was the problem with the new game？

AThe players had difficulty understanding the complex rules

BThe players found the basket too high to reach

CThe players soon found the game boring

DThe players had trouble getting the ball out of the basket

4、 How was the problem with the new game solved？

ABy alerting the size of the basket

BBy simplifying the complex rules

CBy removing the bottom of the basket

DBy lowering the position of the basket

5、 Which kind of ball was used in basketball games at first？

AVolleyball

BSoftball

CAmerican football

DBritish football

keeper younger than sixty, for fear of what people might say about them. I was【56】, however. When I needed a housekeeper I【57】a girl called Bridie Casey, a lovely little girl of seventeen from a village up the coast. But I【58】my choice carefully. I drove out there one day when she was at home, and I had a look at the cottage and a【59】with her mother and a cup of tea, and after that I did not need anyone to say that she was 【60】. I knew if there was anything Bridie did not do【61】her mother would not【62】long to correct her. After that, there was only one【63】to rise.

"Have you a【64】Bridle ？" said I.

"No, doctor, I have not," said she with a simple expression that did not【65】me a bit. As a doctor you soon get used to innocent (无邪的)【66】.

"Well, you'd better【67】and get one," said I,"【68】. I'm not going to take you."

【69】this she laughed.

【70】she started working at my house. She proved to be very【71】and efficient (高效率的). Of course, she was so good-looking that people who came to my house used to pass a【72】about us. But that didn't matter. They did not dare to hire a pretty girl themselves for【73】of what people would say. But I knew as long as a girl had a man of【74】to look after she would give me 【75】.

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A．an inclusion

B．a conclusion

C．an exception

D．a succession