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单选题
Because the castings of smaller engines are not so big and heavy, （） and cylinder block may be made in one piece.
A
the column
B
the jacket
C
cylinder cover
D
cylinder liner
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考题
It is( )that he has to ask for help.
A、so a big jobB、a so big jobC、a such big jobD、such a big job
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Why is it a problem if all the smaller fish species die?A. It's not healthy for the environment.B. People only like to catch big fish.C. There are too many small fish.D. The smaller fish can get lost in the lake.
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It was ___ that he had to ask for help.
A.a so big workB.a so big jobC.such a big workD.a such big job
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Interviewer-------- Why is English so important?David------- Well, English is so important primarily because so many people speak it and use it, so it has now become the lingua franca in the world in a way that we’ve never seen before. We’ve never had a world language of this kind before. So people are learning it not just to be able tocommunicate with native speakers, but also with speakers of other language around world.Interviewer-------And why has it become that dominant language?David------I think the reason for that is actually very complicated, although in the twentieth century, we can just see that it’s the rise of the US military and consumer power. I mean the technology, all the big developments in technology largely came from the US. So all of these developments actually were produced within the English language, and people had to learn English in order to understand them, or to benefit from them. The Internet is only one example of that kind. Once a language has got into that position of dominance, it’s actually very different to shift it. So we could be seeing the emergence of other big languages in the world becoming more important than they have been, like Spanish, but it’s unlikely that they’re going to shift the English from its position of dominance.36. English is important, according to David, __________________________. A). because it has become a world language B). because so many people speak and use it C). because a lot of people are learning it D). because it is the lingua franca37. English has become the dominant language in the world________________________. A). because it has always been the way B). for a reason that is very complicated C). only in the 20th century D). for no reasons38. English became the dominant language in the 20th century_________________________. A). in the USAB). because of the increase in American consumer powerC). because developments in technology came mainly from USA. D). all over the world.39. People had to learn English______________________.A). because developments in technology were made by English speakers B). because they needed to understand the new developments in technology C). to use the InternetD). to speak with native Americans40. David thinks that__________________________.A). it will be easy for another language to become dominant B). English will not always be the dominant languageC). it will not be easy for another language to become dominant D). English will be the dominant language
考题
Although this village isn’t big, all the other villages I _________ so far are smaller.A、have visitedB、would visitC、visitedD、visit
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Today, because of industrialization, a typical family will be required to move even more often than now, ____ families will be even smaller.A: becauseB: asC: sinceD: so
考题
In C language，functions are important because they provide a way to(69)code so that a large complex program can be written by combining many smaller parts．A．modifyB．modularizeC．blockD．board
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Currently 94% of Web users use either Internet Explorer or Firefox, but recently some new(71) have been developed that are beginning to attract attention. The browser Opera is becoming very(72) because of its speed, it is currently the world's fastest browser, and because it is much smaller(73) existing browsers (it can almost fit on a single diskette). It can also(74) the last Web page you visited, so the next time you surf, you can start where you left off. And like the big two, you can get it for free; the catch is that you have to watch blinking ads in one comer, or pay ＄40 for the ad-free (75) of Opera.A．readersB．machinesC．techniquesD．browsers
考题
In C language, functions are important because they provide a way to ______ code so that a large complex program can be written by combining many smaller parts.A．modifyB．modularizeC．blockD．board
考题
（）is a collection of data sets,which is so large and complet that is because difficult to process using on hand database management tools or traditional data peocessing applicationsA.big dataB.clusterC.parallel computingD.data warehouse
考题
Why do you think they had not a backup computer?A. Because it was easy down.B. Because it was very expensive.C. Because it was not advanced enough.D. Because it was not as big as the main computer.
考题
根据下面资料，回答
Today, people all over the world are moving out of small villages in the country to go and live in big, noisy cities. They are moving from the peaceful hills, mountains, fields, rivers and streams of the countryside to the busy world of streets, buildings, traffic and crowds. This movement from rural areas to urban areas has been going on for over two hundred years.
In many countries, the main reason why people come to live in towns and cities is work. After one or two large factories have been built in or near a town, people come to find work, and soon an industrial area begins to grow. There is usually a residential area nearby, where the factory workers can live. The families of these workers need schools, hospitals and shops, so more people come to live in the area to provide these services and a city grows.
In every major city in the world, there is a business district where the big companies have their main offices. In the United States, this area is usually in the city centre. It is here that you can see the huge skyscraper office blocks. The people who work here often travel a long way to work each day. Many of them live in the suburbs of the city, far away from the industrial area and the city centre. Some suburbs are very pleasant, with nice houses and big gardens. There are usually parks for children to play in and large department stores where you can buy all you need.
But what is the future of the big cities? Will they continue to get bigger? Perhaps not. Some major cities have actually become smaller in the last ten years, and it is quite possible that one day we will see people moving out of the major cities and back into smaller towns and villages.
Why do people move to live in cities or towns?A.Because they can live more comfortably there.
B.Because they prefer a noisy life to a peaceful life.
C.Because they want to find work.
D.Because they are sure of having a better life there.
考题
Currently 94% of Web users use either Internet Explorer or Firefox, but recently some new （71） have been developed that are beginning to attract attention. The browser Opera is becoming very（72）because of its speed, it is currently the world’s fastest browser, and because it is much smaller（73） existing browsers (it can almost fit on a single diskette). It can also （74）the last Web page you visited, so the next time you surf, you can start where you left off. And like the big two, you can get it for free; the catch is that you have to watch blinking ads in one corner, or pay $40 for the ad-free （75） of Opera.A.think
B.read
C.write
D.remember
考题
Currently 94% of Web users use either Internet Explorer or Firefox, but recently some new （71） have been developed that are beginning to attract attention. The browser Opera is becoming very（72）because of its speed, it is currently the world’s fastest browser, and because it is much smaller（73） existing browsers (it can almost fit on a single diskette). It can also （74）the last Web page you visited, so the next time you surf, you can start where you left off. And like the big two, you can get it for free; the catch is that you have to watch blinking ads in one corner, or pay $40 for the ad-free （75） of Opera.A.beyond
B.so
C.than
D.as
考题
单选题Smaller engines can be made more rigid than large ones and may not have （）.A
through boltsB
turbo-chargersC
bed platesD
columns
考题
单选题Smaller engines can be made more rigid than large ones and may not have （）.A
connecting rodsB
crankshaftC
crankcaseD
through bolts
考题
单选题Because the tie bolts are so close to the crankshaft, some engines employ （）to hold the crankshaft main bearing cap in position instead of conventional studs and nuts.A
through boltsB
jack boltsC
tap boltsD
fitted bolts
考题
单选题Diesel engines are considered safer than gasoline engines because（）.A
they are more heavily builtB
the fuel used is less volatileC
they can be easily reversedD
they operate at a lower speed
考题
单选题（）, so they are widely used on board ship nowadays.A
Diesel engines have more advantages in comparison with gasoline enginesB
Diesel engines have more advantages in comparison to gasoline enginesC
Gasoline engines have more advantages in comparison with diesel enginesD
Gasoline engines have more advantages in comparison to diesel engines
考题
单选题It is（）that he has to ask for help.A
so a big jobB
a so big jobC
a such big jobD
such a big job
考题
单选题Smaller enterprises have difficulty using foreign talent because of ______.A
the costly recruiting process.B
the expensive legal counsel.C
the competition from big companies.D
the inability to provide sponsorship.
考题
单选题The crankshafts on the large modern 2-stroke crosshead engines are （）big （）makes as a single unit and so are constructed by joining together individual forgings.A
enough；toB
too；toC
such；soD
so；that
考题
单选题Cast iron pistons used in large propulsion diesel engines are constructed with （）A
not taper what so everB
the skirt being tapered and smaller than the crownC
the skirt being tapered and larger than the crownD
the crown being tapered and smaller than the skirt
考题
单选题Sea water is not directly used as a coolant for engines because of its （）.A
low specific heatB
corrosive actionC
high expenseD
acid property
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