__________ is effective when the stockholders of a firm can minimize their losses by selling the organization’s assets.

A、Liquidation

B、Differentiation

C、Diversification

D、Integration

The value of dolphins in military uses is inspired by______.

A．their buzzes

B．their quacks

C．their clicks

D．their squeals

Firms hold regular sales conferences because they can ______.

A．exchange information about the business

B．receive higher education

C．travel around the world

D．take the opportunities to stay together with their colleagues

Firms hold regular sales conferences because they can _______.

A．exchange information about the business.

B．receive higher education.

C．travel around the world.

D．take the opportunities to stay together with their colleagues.

We learn from the passage that ______.

A．the bacteria are only effective against three species of beetles

B．Fields' technique is less effective in winter

C．Fields' technique may kill nearly all the beetles at -10℃

D．Insects may develop resistance against the bacteria

What are retirees below the age of 65 suggested to do when their COBRA runs out?

A．To apply for Medical benefits.

B．To buy another insurance policy.

C．To renew their COBRA

D．To ask for help from the government.

The strong following of the Beatles by their fans was called ______.

A．Beatlejuice

B．Beatlemania

C．Beatlehit

D．Beatletime

By the 1820's in the United States, when steamboats were common on western waters, these boats were mostly powered by engines built in the West (Pittsburgh, Cincinnati, or Louisville), and of a distinctive western design specially suited to western needs. The first steam engines 【21】______ practical use in England and the United States were 【22】______ low-pressure design. This was the type first 【23】______ by James Watt, then manufactured by the firm of Boulton and Watt. Steam was 【24】______ in a large, double-acting vertical cylinder, but the steam reached only a few pounds of pressure per square inch. It was low-pressure engines of this type that 【25】______ first introduced into the United States by Robert Fulton. He 【26】______ such a Boulton and Watt engine from England to run the Clermont. But this type of engine was ,expensive and complicated, 【27】______ many precision-fitted moving parts.

The engine that became standard on western steamboats was of a different and 【28】______ design. It was the work primarily of an unsung hero of American industrial progress, Oliver Evans (1755-1819), the 【29】______ son of a Delaware farmer. Evans early became 【30】______ by the possibilities of mechanized production and steam power. As early as 1802 he 【31】______ a stationary steam engine of high-pressure design in his mill. Engines of this type were not 【32】______, but before Evans they were generally considered 【33】______ and dangerous. Within a decade the high-pressure engine, the new type, had become standard on western waters. Critics 【34】______ of western conditions often attacked it as wasteful and dangerous.

But people who really knew the Ohio, the Missouri, and the Mississippi 【35】______, with good reasons, that it was the only engine for them. In 【36】______ western rivers the weight of vessel and engine 【37】______ important; a heavy engine added to the problem of navigation. The high-pressure engine was 【38】______lighter in proportion to horsepower, and, with less than half as many moving parts, was much easier and cheaper to repair. The main advantages of low-pressure engines were safe operation and 【39】______ of fuel consumption, 【40】______ of which meant much in the West.

【21】

A．on

B．by

C．for

D．in

You have studied hard, and the day has【1】come when you must write your exam. Try to arrive a few minutes before the【2】starts. Avoid talking to other students, especially those【3】are doing some last minute cramming. These people will make you nervous and【4】your concentration.

If you can, choose a seat that allows you to【5】. Try to sit away from the【6】to the room so you are not【7】by students leaving before you are finished. Listen【8】to any verbal instructions from the teacher or any【9】written on the board.

Here are five【10】for taking exams:

1. Catch your【11】;

2. Read the【12】very carefully;

3.【13】through the test;

4.【14】your time;

5. Attack the【15】.

A.fortunately

B.lastly

C.lately

D.finally

Which of the following statements about small business is not true?

A．It helps effectively t9 fight unemployment.

B．The earlier it starts, the sooner it collapses.

C．There's a good omen for small business according to a survey.

D．Small businesses hire more workers than big businesses between now and the year 2000.