High-tech manufacturers are expected to _______________.

You are currently holding a portfolio of bonds. Interest rates are expected to increase over the next few months. In order to protect your investment, your bond portfolio should contain bonds with the following characteristics:______.

A．low convexity and low coupons

B．low convexity and high duration

C．high convexity and high coupons

D．high duration and high convexity

A．Now manufacturers are seeking a combination of high-tech features and "cool" design

B．Those young white-collar women have not been the primary buyers of digital cameras

C．Digital technology is still a novelty nowadays.

D．The Canon Digital PowerShot s230 camera is introduced in September, 2002.

The approaching 4G mobile communication systems are projected to （ ） still remaining problems of 3G systems and to provide （ ） new services ,from high-quality voice to high-definition video to high data-rate wireless channels.[1分]

A.solve

B.solving

C.reduce

D.increase

The approaching 4G mobile communication systems are projected to （ ） still remaining problems of 3G systems and to provide （ ） new services ,from high-quality voice to high-definition video to high data-rate wireless channels.[1分]

A.all kinds of

B.all sorts of

C.a kind of

D.a wide varieyt of

听力原文： The number of job opportunities for pilots in the U. S. is expected to grow about as fast as the average of overall employment growth from 2003 to 2010. However, competition for jobs will continue to be high. Causes that slow growth are a function of mergers and challenges in the airline industry. In addition, advancements in technology reduce the need for Flight Engineers, and video conferencing and teleconferencing reduce the need for business travel. Some industry analysts predict the need for 27,000 new pilots between 2003 and 2010 as a result of retirement. Many of the pilots who were hired in the 1960s are now reaching mandatory retirement age, and thus a few thousand job vacancies are expected to arise each year for the next several years. Note that not many pilots retire early because of the high earnings and benefits, and the fact that their unique skills are not generally transferable to other careers. The employment of pilots is sensitive to changes in the economy. Airlines are forced to furlough or temporarily lay-all pilots during periods when the demand for air travel declines. At times of recession, pilots employed in commercial or corporate flying and flight instruction are adversely affected by the downturn in the economy.

What is the caravan?

A．A kind of business.

B．A group of people who travel together.

C．A means of transportation.

D．A marketplace.

The home service industry in Beijing is expected to become more attractive both as a job and as an industry.

Sources at the Beijing People' s Political Consultative Conference said resistance to home service work is melting away from minds of the city's laid-off workers.

The Conference suggested the establishment of municipal centers which supervise property management, household mending and installation, and house keeping services.

Modem city life is creating a need for industrialization home services. This will create job opportunities for laid-off workers, said vice director of the Social Judicial Committee of the Conference.

Beijing residents have long desired a home service industry. The demand is expected to drive new economic growth. There are few high quality home help services in Beijing and customers are always complaining.

In the past, few laid-off workers in Beijing desired to work as home helpers, jobs largely taken by young women from the countryside. At the same time, some city residents have not felt safe trusting rural girls with modern household machines or with their small children. Many people would pay more for reliable house keepers who are more familiar with city life, but they have had no way of getting one, even though the city is home to thousands of laid-off workers.

By the end of June this year, there were 30,600 jobless workers in the city. Most of them are women in their 40's, who are not blessed with particular skills and who have had their work ethics shaped by the planned economy. Many of them were at a loss when they first realized they had lost their jobs and a way of life they had got used to for decades.

They never imagined being laid-off by state-owned enterprises; they never considered other kinds of employment. For them, the private sector meant taking risks; housekeeping implied lower social status. Gao Yunfang, 44, is a pioneer who is breaking the ice. She sells the Beijing Morning Post in the morning, and works at two households in the afternoon. She earns 1,000 yuan per month. So she no longer worries about her daughter' s tuition at a university in Shanghai.

What is talked about in the passage?

A．Home service.

B．Modern city life.

C．Laid-off workers.

D．Social status.

The home service industry in Beijing is expected to become more attractive both as a job and as an industry.

Sources at the Beijing People's Political Consultative Conference said resistance to home service work is melting away from minds of the city's laid-off workers. The Conference suggested the establishment of municipal centers which supervise property management, household mending and installation, and house keeping services. Modern city life is creating a need for industrialization home services. This will create job opportunities for laid-off workers, said Vice director of the Social Judicial Committee of the Conference.

Beijing residents have long desired a home service industry. The demand is expected to drive new economic growth. There are few high quality home help services in Beijing and customers are always complaining.

In the past, few laid-off workers in Beijing desired to work as home helpers, jobs largely taken by young women from the countryside. At the same time, some city residents have not felt safe trusting rural girls with modern household machines or with their small children. Many people would pay more for reliable house keepers who are more familiar with city life, but they have had no way of getting one, even though the city is home to thousands of laid-off workers.

By the end of June this year, there were 30,600 jobless workers in the city. Most of them are women in their 40's, who are not blessed with particular skills and who have had their work ethics shaped by the planned economy. Many of them were at a loss when they first realized they had lost their jobs and a way of life they had got used to for decades.

They never imagined being laid-off by state-owned enterprises; they never considered other kinds of employment. For them, the private sector meant taking risks; housekeeping implied lower social status. Gao yunfang, 44, is a pioneer who is breaking the ice. She sells the Beijing Morning Post in the morning, and works at two households in the afternoon. She earns 1,000 yuan per month.

So she no longer worries about her daughter's tuition at a university in Shanghai.

What is talked about in the passage?

A．Home service.

B．Modern city life.

C．Laid-off workers.

D．Social status.