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[主观题]

Most larger main engines are arranged for continuous bypass purification using ().

Most larger main engines are arranged for continuous bypass purification using （).

A. settling

B. centrifugal purifiers

C. blending

D. heating

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发布时间：2022-09-22

更多“Most larger main engines are arranged for continuous bypass purification using ().”相关的问题

第1题

The main function of the liver is to ______.A．clean most toxins from alcoholB．metabolize f

The main function of the liver is to ______.

A．clean most toxins from alcohol

B．metabolize fat from the bloodstream

C．clean most toxins from bloodstream

D．dispose of poisons from tobacco at once

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第2题

Government reports, examination, and most business letters are the main situation formal l

anguage is used.

A．in which

B．at which

C．on which

D．in that

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第3题

What is the main idea of paragraph 2？A.There will open a new hamburger store later this mo

What is the main idea of paragraph 2？

A.There will open a new hamburger store later this month

B.The Indulgence Burger will own the title of "most expensive burger"

C.The new open burger store hopes to win the title of "most expensive burger"

D.The Indulgence Burger at Beer&Buns expects the the title of "most dear burger"

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第4题

Immigrants who adapt most quickly usually have a background similar to the new cultural en

vironment and they also plan to re- main permanently in the new country.

A.everlastingly

B.probably

C.definitely

D.comfortably

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第5题

The main idea of the passage is that______.A．life is not enjoyable since each age has some

The main idea of the passage is that______.

A．life is not enjoyable since each age has some pains

B．young men can have the greatest happiness if they work hard

C．childhood is the most enjoyable time in one's life

D．one is the happiest if he can make good use of each age in his life

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第6题

4 Chris Jones is Managing Director of Supaserve, a medium-sized supermarket chain faced wi

th intense competition

from larger competitors in their core food and drink markets. They are also finding it hard to respond to these

competitors moving into the sale of clothing and household goods. Supaserve has a reputation for friendly customer

care and is looking at the feasibility of introducing an online shopping service, from which customers can order goods

from the comfort of their home and have them delivered, for a small charge, to their home.

Chris recognises that the move to develop an online shopping service will require significant investment in new

technology and support systems. He hopes a significant proportion of existing and most importantly, new customers,

will be attracted to the new service.

Required:

(a) What bases for segmenting this new market would you recommend and what criteria will help determine

whether this segment is sufficiently attractive to commit to the necessary investment？ (10 marks)

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第7题

Most American families are smaller than the families in other countries. Most American

families have one or two parents and one or two children each. Children in the US will leave their parents ’ home when they grow up. They usually live far from their parents because they want to find good jobs. They often write to their parents or telephone them. And they often go to visit their parents on holiday. Parents usually let their children choose their own jobs. Americans think it important for young people to decide on their lives by themselves. Children are asked to do some work around their house. And in many families, children are paid for doing some housework so that they learn how to make money for their own use.

1.The size of most American families is() that of other countries.

A、larger than

B、smaller than

C、as big as

D、as small as

2.When children grow up, they leave their parents’ home to()

A、get married

B、be free

C、find good jobs

D、study

3.They visit their parents()

A、on weekdays

B、on weekends

C、at any time

D、on holiday

4.Which of the following statements is WRONG()

A、Children have the freedom to choose their own job

B、Parents don't ask their children to do the housework.

C、Parents think it important for children to make their own decision.

D、When children grow up, they usually live far away from their home.

5.Some parents pay their children for doing housework because ()

A、children can learn how to make money for themselves

B、their children required them to do so

C、they are rich

D、it is required by law

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第8题

On the old-time farm in America there were chickens and turkeys. There were also cows, pig

s, and other livestock. But there were very few machines. Most of the work was done by the entire farm family with the help of a "hired" man. Sometimes extra labourers were needed in busy seasons. Horses provided 79 percent of the power used, human labor 15 percent, and machines only 6 percent.

Today all that has changed. On many modern farms machines now supply 96 percent of the power, human labor 3 percent, and horses 1 percent. Modern farms are enterprising businesses which keep only the livestock that can pay its way. The children go to school by bus every morning, the parents work on the farm or in the house, and hired help is seldom needed. Their work has been replaced by a whole army of farm machines.

Farmers in the machine age also use the new fertilizers, new sprays, new feeds, new hybrid seeds, and other helps developed by farm sciences. As a result the farmers are able to produce more food with less labour. This means fewer but larger farms and fewer but more prosperous farmers.

In old days, most of the work on a farm was done by______.

A．all the farm family

B．livestock

C．farm machines

D．both A and B

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第9题

People often speak of fire as though it were a living creature--It grows, dances, needs ox

ygen, feeds on whatever it can find, and then dies. And when a forest fire rages out of control, threatening human lives and homes, it must be fought like a "wild animal." The fight is often desperate, since firefighters' best efforts may be dwarfed by the fury of a large fire. But the fire's own traits can be used against it.

The heated air above a fire rises in a pillar of smoke and burnt gases, pulling fresh air in from the sides to replace it. Firefighters use this fact when they "fight fire with fire." They start a fire well in front of the one which they are fighting. Instead of traveling on in front of the huge fire, the smaller fire is pulled back toward it by the updrafts of the larger blaze. As it travels back to meet the large fire, the smaller backfire burns away the fuel that the forest fire needs to survive.

Even when a backfire has been well set, however, the fire may still win the struggle. The wind which the firefighters used to help them may now become their enemy. When the backfire meets the main fire, before both die for lack of fuel, there is tremendous flame, great heat and wild winds. A strong gust may blow the fire into the treetops beyond the area, giving the fire new fuel and a new life.

This passage focuses on ______.

A．how fires start

B．damage caused by fire

C．the fascination of fire

D．fighting forest fires

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第10题

We got up early this morning and 【61】 a long walk after breakfast. We walked through the b

usiness 【62】 of the city. The city 【63】 larger than I thought it would be. Well, the business section is smaller than I thought it would be. I suppose that's 【64】 Washington is a special kind of city. 【65】 of the people in Washington work for the government.

At about 9:30 we went to the White House. It's 【66】 the public from 10 【67】 12, and there was a long line of people 【68】 to get in. We didn't have to wait very long, because the line moved 【69】 quickly.

The White House is really white. It is painted every year. And it seems very white, because it's got beautiful lawns 【70】 around it, with many trees and shrubs. The grounds 【71】 about four square blocks. I mean, they're about two blocks long 【72】 each side.

Of course, we didn't see the whole building. The part 【73】 the President lives and works is not open to the public. But the part we saw was beautiful. We went 【74】 five of the main rooms. One of them was the library on the ground floor. On the next floor, there are three rooms named 【75】 the colors that are used in them: the Red Room, the Blue Room, and the Green Room. The walls are covered with silk 【76】 There are 【77】 of old furniture from the time 【78】 the White House was 【79】 built. And everywhere there are paintings and statues of former presidents and 【80】 famous people from history.

(61)

A．made

B．took

C．went

D．set

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第11题

For more than six million American children, coming home after school means coming home to

an empty house. They spend part of each day alone. They are called "latchkey children". They're children who look after themselves while their parents work. And their bad conditions have become a social problem.

Lyne Brown was once the headmaster of an elementary school. She said, "A lot of kids had chains around their necks with keys attached.! was constantly telling them to put them inside shirts. There were so many keys, it never came to my mind what they meant. ",slowly, she learned they were house keys.

Lyne learned of the impact working couples and single parents were having on their children. She found that Fear is the biggest problem faced by children at home alone. Many had nightmares and were worried about their own safety.

The most common way latchkey children deal with their fears is by hiding. It might be in a shower stall, under a bed, in a closet. The second is TV. They'll often play it at high volume. It's hard to get statistics (情况，材料) on latchkey children. Most parents are slow to admit they leave their children alone.

The main idea about "latchkey children" is that they______.

A．are growing in numbers

B．are also found in middle-class neighborhoods

C．watch too much television during the day

D．suffer problems from being left alone

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