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Diamonds cost more than water, so diamonds must be worth more to us than water.()

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更多“Diamonds cost more than water,…”相关的问题
第1题
Hopewell sells a line of goods under a six-month warranty.Any defect arising during t

Hopewell sells a line of goods under a six-month warranty.Any defect arising during that period is repaired free of charge.Hopewell has calculated that if all the goods sold in the last six months of the year required repairs the cost would be $2 million.If all of these goods had more serious faults and had to be replaced the cost would be $6 million.

The normal pattern is that 80% of goods sold will be fault-free, 15% will require repairs and 5% will have to be replaced.

What is the amount of the provision required().

A、$2 million

B、$1.6 million

C、$6 million

D、$0.6 million

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第2题
已知,则f(t)=L-1[F(s)]=()。

A.δ(t)+cost

B.δ(t)-cost

C.δ(t)+sint

D.δ(t)-sint

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第3题
When moving along a production possibilities frontier, the opportunity cost to society of obtaining more of one of the two goods()?
A.is measured in dollar terms

B.usually decreases as more of the good is produce

C.is measured by the amount of the other good that must be given up

D.is measured by the additional resources that must be used to produce the good

E.is usually constant

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第4题
计算(x,y,z)=6x^2+5y^2+z^4沿曲线c(t)=(cost,sint,t)的积分,其中0≤t≤π。∫c(6x^2+6y^2+z^4)ds=__________

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第5题
“Don’t bother to make any more dishes. Just give a bowl of ().”

A.white rice

B.clear rice

C.cook rice

D.plain rice

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第6题
(1) Life can be tough for immigrants in America. A...

(1) Life can be tough for immigrants in America. As a Romanian bank clerk in Atlanta puts it, to find a good job “you have to be like a wolf in the forest – able to smell out the best meat.” And if you can’t find work, don’t expect the taxpayer to bail you out. Unlike in some European countries, it is extremely hard for an able-bodied immigrant to live off the state. A law passed in 1996 explicitly bars most immigrants, even those with legal status, from receiving almost any federal benefits. (2) That is one reason why America absorbs immigrants better than any other rich countries, according to a new study by the University of California. The researchers sought to measure the effect of immigration on the native-born in 20 rich countries, taking into account differences in skills between immigrants and natives, imperfect labor markets and the size of the welfare state in each country. (3) Their results offer ammunition for fans of more open borders. In 19 out of 20 countries, the authors calculated that shutting the doors entirely to foreign workers would make the native-born worse off. Never mind what it would do to the immigrants themselves, who benefit far more than anyone else from being allowed to cross borders to find work. (4) The study also suggests that most countries could handle more immigration than they currently allow. In America, a one-percentage point increase in the proportion of immigrants in the population made the native-born 0.05% better off. The opposite was true in some countries with generous or ill-designed welfare states, however. A one-point rise in immigration made the native-born slightly worse off in Austria, Belgium, Germany, Luxembourg, the Netherlands, Sweden and Switzerland. In Belgium, immigrants who lose jobs can receive almost two-thirds of their most recent wage in state benefits, which must make the hunt for a new job less urgent. (5) None of these effects was large, but the study undermines the claim that immigrants steal jobs from native or drag down their wages. Many immigrants take jobs that Americans do not want, the study finds. This “smooths” the labor market and ultimately creates more jobs for locals. Native-owned grocery stores do better business because there are immigrants to pick the fruit they sell. Indian computer scientists help American software firms expand. A previous study found that because immigrants typically earn less than locals with similar skills, they boost corporate profits, prompting companies to grow and hire more locals. 1. Increase in immigration in Austria fails to improve locals’ life mainly because of ________.

A、low wages for locals

B、imperfect labor markets

C、the design of the welfare system

D、inadequate skills of immigrants

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第7题
There is a business letter below. After reading it, you should give brief answers to t
he 5 questions (No.41 through No.45) that follow. The answevs (in not more than 3 words) should be written after the corresponding numbers on the Answer Sheet.

Gmail(Google Email)Notice

Subject: Your Gmail account has bean inactive for a long time

From “The Gmail Team”gmail-noreply@gmail,com

Time2008-06-26 14:12:15

To wanghaiyan@163.com

Hi there,

We’ve noticed that you haven’t used your Gmail account,wanghaiyan@ gmail.com,for quite some time.In order to make Gmail better for our users,we’ve added a lot of things in the last few months and we hope you’ll want to start using your account again.

Stop worrying about storage(存储量).Your account now has 5000 megabytes(兆字节)of free storage and our plan is to continue growing your storage by giving you more space as we are able.

The Gmail interface(界面)is now available in 12 languages.If you don’t see the language you want on this list.Look for it in the future because we’re going to keep adding more.

We’re still working hard every day to build for you the best email service around.But to keep Gmail great for our users.we may have to close inactive accounts after 9 months.So,we hope you’11 give us another chance.To log in(登录)to your Gmail account,just visit:http://gmail,google,com.

Thanks.

The Gmail Team

41.Why does the Gmail Team write to the Gmail user?

Because the user hasn’t used his/her Gmail_______for quite some time.

42.What kind of storage the user’s account now has?

It now has 5,000 megabytes of_________________________storage.

43.How many languages are available in the Gmail interface now?

__________________________________________________________.

44.What may happen to the user’s account if it is inactive for 9 months?

The Gmail team may have to_______________the user’s account.

45.What is the purpose of the Gmail team in sending this email?

They hope the user will______________the account.

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第8题
Directions:Read the following passage and the statements that follow. Choose the best answer for each statement from the four choices marked A, B,C and D.

Directions:Read the following passage and the statements that follow. Choose the best answer for each statement from the four choices marked A, B,C and D.

The Internet is an exciting tool that puts vast information at your fingertips. With a click of a mouse, it lets you buy an airline ticket, book a hotel, send flowers to a friend, or purchase your favorite stock.

Security on the Internet

Shopping online offers lots of benefits that you won’t find while shopping in a store or by mail. The Internet is always open—seven days a week, 24 hours a day—and bargains can be numerous online. Shopping on the Internet is no less safe than shopping in a store or by mail. Keep the following tips in mind to help ensure that your online shopping experience is a safe one.

EASY AS ABC

When exploring online, think ABC to remember the privacy and security questions you should ask about a company.

About me. What information does the company collect from me and is it secure?

Benefits. How does the company use that information and what is the benefit to me?

Choices. What choices do I have about the company’s use of information about me? Can I choose not to have the information used for other purposes, and how?

1.The real meaning behind “with the click of a mouse” may be ().

A.with the use of computer and internet

B.just the action of clicking the mouse

C.with the information

D.none of the above

2.Which of the following is the most efficient way to reduce age related memory loss()?

A.Eating more meat and doing more exercises.

B.Eating right foods and getting sufficient amounts of sleep

C.Taking more medicine and doing more exercises

D.Taking more herbs and eating more food

3.Most of his savings()in the Xin Hua Bank.

A.has been kept

B.is being kept

C.have kept

D.have been kept

4.By “permissive period in education” the author means a time().

A.when children are allowed to do what they wish to

B.when everything can be taught at school

C.when every child can be educated

D.when children are permitted to receive education

5.Jogging is the best way for stretching and relaxation and helps to reduce many diseases().

A.True

B.False

C.Not Mentioned

6.What is this passage mainly about()?

A.Shopping online safely

B.Differences between shopping online and in the store

C.Internet is convenient

D.Benefits of shopping online

7.We learn from the passage that the author’s mother used to lay emphasis on().

A.learning Latin

B.natural development

C.discipline

D.education at school

8. What’s the main idea of the text()?

A.Chinese fashion designer got start in the industry two decades ago

B.China has made a great difference in latest fashion

C.A small number of established Chinese designers have been in business for less than 10 years

D.The Chinese fashion world is constantly growing

9. The country had little interaction with the outside world, which meant all of the following but().

A.no fashion magazines

B.no designer labels

C.no events like China Fashion Week

D.no fashion designers

10.Jim is the only one of the staff members who()to be promoted.

A.are

B.have been

C.is

D.has been

11.The main idea of the passage is that().

A.parents should leave their children alone

B.kids should have more activities at school

C.it’s time to be more strict with our kids

D.parents should always set a good example to their kids

12.Which of the following is NOT true according to Paragraph 2()?

A.It is shown that one area of the brain known as the hippocampus is important in recalling information

B.The process of creating memories has been already understood and it involves three main steps.

C.Scientists believed that neurons first transform. the sensory stimuli into images in our immediate memory

D.Scientists don’t know exactly how the information is transferred from one area of the brain to another

13.Outdoor learning helps students learn in science and arts().

A.Right

B.Wrong

C.Doesn’t say

14.All that can be done().

A.has done

B.has been done

C.have done

D.have been done

15. What should we do in order to communicate with the foreigners in a proper way()?

A.Shake hands with them whenever you meet the foreigners

B.Be familiar with their culture and use it in a correct way

C.Say “Where are you going?” instead of “Hi, have you had your meal?” when meeting on the street

D.Say nothing to them if we meet them

16.By paragraph 2 we can see Istanbul is().

A.a leisure city

B.a busy city

C.a developed city

D.a developing city

17. According to the text, the following sentences are true except().

A.Chinese designers are looking to foreign countries to find retail success

B.China had little interaction with the outside world two decades ago

C.China has gone from a fashion black hole to an industry hub in twenty years

D.the future of Chinese fashion is bright

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第9题
The cost of the material is ____ in the bill for the work.

A.dismissed

B.excluded

C.rejected

D.discovered

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第10题
Which of the following items should be capitalised within the initial carrying amount
of an item of plant?

(i) Cost of transporting the plant to the factory

(ii) Cost of installing a new power supply required to operate the plant

(iii) A deduction to reflect the estimated realisable value

(iv) Cost of a three-year maintenance agreement

(v) Cost of a three-week training course for staff to operate the plant().

A、(i) and (ii) only

B、(i), (ii) and (iii)

C、(ii), (iii) and (iv)

D、(i), (iv) and (v)

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第11题
Ten dollars will()the cost of the damage.

A.need

B.pay

C.cover

D.spend

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