Another principle for a business is () that profitable sales volume is than maximum sales volume.

Practical application of this principle resulted in ______.

A．new electronic instruments for planes

B．new radio sets for RAF bombers

C．an electronic detecting device

D．a radio directing and ranging device

al information on matters on a basis to another state, especially in relation to scientific and technical information.

A、nature

B、obligation

C、principle

D、rule

h principle doe， s the teacher follow in his/her vocabulary teaching？

A.Word-choice principle.

B.Presentation principle.

C.Culture principle.

D.Systematic principle.

A．people don’t have enough money to buy what they want

B．society will eventually run out of resources

C．with limited resources, having more of one thing means having less of another

D．some countries have fewer resources than others

Which of the following sentences does NOT indicate ability？

A．Is there anything I can do for you？

B．I"ll be able to speak Chinese in another two months.

C．Where can he be？

D．At that time I could read without spectacles.

What happened when Mrs. Grey came back from work that evening？

A．A policeman was waiting for her.

B．She had another accident.

C．She couldn"t find a place to park her car.

D．The young man was waiting for her in his car.

Which statement is not true according to the news？

A．This is the biggest takeover battle for China.

B．China's bid will probably trigger a costly biding competition over the company Unacal.

C．The US is planning forbidding Chinese company' s bids for US company.

D．Unocal has agreed to be sold to another American oil company.

Which statement is not true according to the news？

A．This is the biggest takeover battle for China.

B．China's bid will probably trigger a costly biding competition over the company Unocal.

C．The US is planning forbidding Chinese company's bids for US company.

D．Unocal has agreed to be sold to another American oil company.

Questions 19 to 22 are based on a conversation between two friends.

what's the good news for the man？

[A] His company wants him to stay in New York for another half year.

[B] His wife is involved in an important project.

[C] His company wants him to move to an apartment.

[D] He could save money in the long run.

Questions 19 to 22 are based on a conversation between two friends．

What‘s the good news for the man？ 查看材料

A.His company wants him to stay in New York for another half year．

B.His wife is involved in an important project．

C.His company wants him to move to an apartment．

D.He could save money in the long run．

y through his efforts【1】the English currency was put on the satisfactory basis at a difficult time.【2】discovered a relationship between prices and the amount of money in circulation, which【3】later formalized in the so-called "quality【4】of money: if the amount of currency in circulaton is doubled--other things【5】the same--then prices also will approximately double. This is a simple application【6】the principle that it is impossible to get something for nothing, but apparently it took someone like Newton to discover it. There is an obvious comparison with Copernicus, who【7】the Polish government on currency questions and in doing so discovered another important【8】(usually known as Gresham's Law): when bad money is accepted as legal tender,【9】money will be driven out of【10】. Copernicus anticipated Gresham in the formation of this law.

(31)

A．which

B．why

C．that

D．for